:U.S. Route 30 in Iowa

{{short description|U.S. Highway in Iowa}}

{{about|the section of U.S. Route 30 and the Lincoln Highway in Iowa|the entire length of the highways|U.S. Route 30|and|Lincoln Highway}}

{{Use American English|date=May 2025}}

{{Use mdy dates|date=January 2022}}

{{Infobox road

|state=IA

|type=US

|route=30

|map={{maplink-road|from=U.S. Route 30 in Iowa.map}}

|map_custom=yes

|map_notes=US 30 highlighted in red

|length_mi=330.856

|length_ref=

|established=1926

|history=Lincoln Highway from 1913–1928

|direction_a=West

|terminus_a={{Jct|state=NE|US|30}} at Blair, Nebr.

|junction={{plainlist|

}}

|direction_b=East

|terminus_b={{Jct|state=IL|US|30}} at Fulton, Ill.

|counties={{flatlist|

}}

|previous_type=I

|previous_route=29

|next_type=IA

|next_route=31

}}

U.S. Highway 30 (US 30) is a major east–west U.S. Highway which spans {{convert|330|mi}} across the state of Iowa. It is the longest primary highway in the state and is maintained by the Iowa Department of Transportation (Iowa DOT). The route in Iowa begins at the Missouri River crossing at Blair, Nebraska, and ends at the Mississippi River crossing at Clinton, Iowa. Along the way, it serves Denison and Carroll in western Iowa, Boone, Ames, and Marshalltown in central Iowa, and Tama, Cedar Rapids, and DeWitt in eastern Iowa. Cutting across the central portion of the state, US 30 runs within close proximity of the Union Pacific Railroad's Overland Route for its entire length.

US 30 was conceived as a part of the Lincoln Highway, the first transcontinental highway in the United States. A route through Iowa was chosen because of the important link between Omaha, Nebraska, and Chicago, Illinois. As the U.S. Highway System came into being in the 1920s, and the Lincoln Highway became US 30, federal money started to pay for paving Iowa's dirt roads. By 1931, the route had been paved across the entire state.

The route of the Lincoln Highway and US 30 has accommodated the changing needs of the traveling public. Early Lincoln Highway travelers were directed into many small towns as the route traveled {{convert|358|mi}} across the state. Towards the middle of the 20th century, the route was straightened, bypassing most downtown areas and several towns altogether. More recently, long sections of US 30 have been upgraded to a four-lane expressway to accommodate increasing traffic. Since 2006, the highway has been designated an Iowa Heritage Byway by Iowa DOT, the first highway in the state with that distinction.

Route description

US 30 extends from west to east across the central portion of Iowa, with much of the highway traveling through rolling farmland. Small towns dot the entire route, which connects the larger cities of Denison, Ames, Marshalltown, Cedar Rapids, and Clinton. Between Ogden and Mount Vernon, significant portions of the highway have been upgraded to a four-lane freeway.

=Western Iowa=

US 30 enters the western end of Iowa by crossing the Missouri River on the Blair Bridge, located east of the Nebraska town of the same name. Adjacent to the highway bridge is the Union Pacific Railroad's river crossing for the Overland Route. The highway runs roughly parallel to the rail line for its entire run across Iowa. For {{convert|9|mi|spell=in}}, traffic moves through the flat Missouri River bottoms, passing DeSoto National Wildlife Refuge on the way to Missouri Valley. At Missouri Valley, it intersects Interstate 29 (I-29) at a partial cloverleaf interchange. It enters the Boyer River valley through the Loess Hills, a region of wind-deposited silt extending from north of Sioux City to extreme northwestern Missouri. The rolling Loess Hills rise {{convert|50|-|100|ft}} above the roadway while the land in the valley stays relatively flat. US 30 enters Logan and intersects the eastern end of Iowa Highway 127 (Iowa 127). The highway runs parallel to the Boyer River as well as the Overland Route in a general northeast direction from Logan. {{Convert|4|mi|spell=In}} east of Logan is the western end of Iowa 44, which extends {{convert|105|mi}} east to Des Moines.

The highway enters Crawford County north of Dunlap in Harrison County. For {{convert|17|mi|spell=in}}, US 30 passes through farmland and the small communities of Dow City and Arion. For {{convert|1/2|mi|m|spell=in}} through Denison, it overlaps US 59 and Iowa 141, which run concurrently through the town. The Iowa DOT refers to routes which overlap other routes as duplicate routes. It follows the East Boyer River through Denison as the Boyer River forks west of the northern intersection with US 59 / Iowa 141. US 30 travels north-northeasterly towards Vail. Between Vail and Westside, the highway ceases following the East Boyer River and heads due east towards Arcadia and Carroll in Carroll County.

At Carroll it intersects US 71 on the western side of the city. Continuing east, the highway goes through the town of Glidden and passes to the north of Ralston, west of the Greene County line. North of Scranton it meets the northern end of Iowa 25. Between Scranton and Jefferson, US 30 crosses the Raccoon River. US 30 crosses Iowa 4 and Iowa 144 on the northern edge of Jefferson and Grand Junction, the latter of the cities named for its location at the junction of the historic Chicago & Northwestern and Chicago, Rock Island and Pacific Railroads, now both owned by Union Pacific, respectively. East of Grand Junction, the highway passes over the Overland Route where it stays south of the railroad until Le Grand.

=Central Iowa=

{{convert|4|mi|spell=In}} west of Ogden, US 30 is joined by US 169 from the north. The two highways run concurrently until reaching Ogden, where the road becomes a four-lane expressway. US 169 exits to the south at a partial cloverleaf interchange, while US 30 continues east through Boone County and descends into the Des Moines River valley. It ascends from the valley and travels another {{convert|2|mi|spell=in}} to a four-way stop in Boone, which is the last stop along the route until Iowa 1 in Mt. Vernon, though this is now a roundabout. {{convert|3|mi|spell=In}} east of Boone, it meets Iowa 17 at a diamond interchange. {{Convert|1|mi|spell=In}} east of that interchange is a shortcut to northbound Iowa 17.

Traffic is filtered into Ames and Iowa State University (ISU) from US 30 through five interchanges. On the outskirts of Ames are the Lincoln Way interchanges, access to and from Lincoln Way is handled by two half interchanges {{convert|3/4|mi|spell=in}} apart. From the interchanges to the Story County line {{convert|1+3/4|mi|spell=in}} away, Lincoln Way is designated as Iowa 930, but is never signed as such. The South Dakota Avenue interchange primarily serves the southwestern part of Ames. The University Boulevard (formerly Elwood Drive) exit provides access to the Iowa State University campus and Iowa State Center, ISU's cultural and athletics complex. The Duff Avenue interchange provides access to Ames's east side. US 69 and Interstate 35 Business Loop are designated along Duff Avenue. From Duff to I-35, US 30 is overlapped by the I-35 Business Loop. Between the Duff and Dayton Avenue interchanges, it crosses the South Skunk River. The Dayton Avenue interchange serves hotels and restaurants and is a travel stop for I-35 travelers.

File:Lincoln Highway Bridge, Tama, IA.jpg

East of the Dayton Avenue interchange is I-35, which connects US 30 to Minneapolis, Minnesota, to the north, and Des Moines to the south. Continuing east, the expressway travels {{convert|6+1/2|mi|spell=in}} to Nevada, {{convert|6|mi|spell=in}} more to the US 65 interchange at Colo, {{convert|7+1/2|mi|spell=in}} to State Center, and {{convert|7+1/2|mi|spell=in}} the Iowa 330 interchange on the western edge of Marshalltown. {{Convert|1|mi|spell=In}} to the east are two half-interchanges with U.S. Route 30 Business (US 30 Business). US 30 bypasses Marshalltown approximately {{convert|1/4|mi|m|spell=in}} south of its business loop. Near Marshalltown Community College, it intersects Iowa 14 at a diamond interchange. The 18th Avenue interchange on the southeastern side of Marshalltown is the eastern end of the business loop. From Marshalltown, it travels {{convert|5|mi|spell=in}} to Le Grand, crossing over the Overland Route rail corridor on the west side. It bypasses Le Grand to the north, where it intersects the northern end of Iowa 146 at a diamond interchange. Continuing east, the highway enters Tama County. It rises over a large hill north of Montour and then descends into the Iowa River valley.

East of the Iowa River is the Meskwaki Settlement, which is home to about 800 Meskwaki Native American tribespeople and the Meskwaki Casino and Resort. As it heads into the Tama–Toledo area, the expressway bisects the two communities. Between the two cities, it meets US 63 at a partial cloverleaf interchange. From US 63 it turns to the southeast to skirt Tama's east side. It rejoins the former alignment of the highway east of Tama and heads due east, along section lines in Tama and Benton Counties, and does not enter another town for {{convert|40|mi}}.

=Eastern Iowa=

US 30 enters Benton County {{convert|9|mi|spell=in}} north of Belle Plaine at an intersection with Iowa 21. It continues east along a section line, passing the communities of Keystone, Van Horne, and Blairstown. {{convert|3+1/2|mi|spell=In}} southwest of Newhall, or {{convert|4+1/4|mi|spell=in}} southeast of Van Horne, it meets US 218 and becomes a four-lane road. US 30 and US 218 travel together due east towards Cedar Rapids, passing Norway and Atkins. On the western end of Cedar Rapids, US 30 / US 218 turn to the southeast at the 16th Avenue SW interchange. {{Convert|2|mi|spell=In}} to the southeast is the Williams Boulevard interchange, where US 151 joins US 30 and US 218. For {{convert|4|mi|spell=in}}, US 30 / US 151 / US 218 is a wrong-way concurrency; that is, where two or more routes heading in opposite directions share the same highway. In this instance, US 30 is the main east–west road while US 151 and US 218 are duplicate routes, nominally heading north and south, respectively. At the I-380 interchange, US 218 leaves US 30 / US 151 and joins the Avenue of the Saints highway. East of I-380, US 30 / US 151 serve as a divider between the Lincolnway Village neighborhood to the south and a light industrial district to the north.

File:Gateway Bridge Illinois-Iowa 2.jpg

South of Bertram, the two routes cross the Cedar River before US 151 splits away from US 30 to the north at a trumpet interchange. This interchange is the southern end of Iowa 13. The road dips southeast, ultimately bypassing the cities of Mount Vernon and Lisbon, while converging back into a 2-lane road at the conclusion of the bypass. Over the next {{convert|45|mi}}, US 30 passes through a small town every {{convert|4|to|7|mi|spell=in|0}}. In Cedar County it passes through Mechanicsville, Stanwood, Clarence and Lowden. In Stanwood, it is overlapped by Iowa 38 for {{convert|1|mi|spell=in}}. In Clinton County, it passes through Wheatland, Calamus, and Grand Mound before reaching a full cloverleaf interchange with US 61 at DeWitt. US 30 overlaps US 61 for {{convert|1|mi|spell=in}}, crossing the Union Pacific Overland Route in the process, and leaves US 61 via a trumpet interchange.

US 30 continues east as an expressway, passing DeWitt to the south. {{convert|5|mi|spell=In|0}} east of DeWitt, it crosses back over to the north side of the Overland Route. West of the Clinton city limits is an interchange with Clinton County Road Z36 (CR Z36), which serves Low Moor and as a shortcut to southbound US 67. East of CR Z36, it passes the Clinton Municipal Airport and a large chemical plant. As it approaches Mill Creek Parkway, it descends over {{convert|100|ft}} in elevation into the flat Mississippi River valley, where it meets US 67. US 30 / US 67 head east along Lincoln Way and ascend {{convert|50|ft}} onto a plateau, atop which reside stores and restaurants. As they continue east, the two routes split into one-way streets, eastbound Liberty Avenue and westbound Camanche Avenue. The one-way street alignment ends at 11th Avenue South, but quickly begins again as US 30 / US 67 turn to the north onto northbound South Third Street and southbound South Fourth Street. At Eighth Avenue South, US 30 splits away from US 67 and onto the Gateway Bridge and crosses into Illinois.

History

The path which US 30 follows has changed since it was originally planned as the Lincoln Highway in the early 1910s. The first path connected as many downtown areas as possible, in order to create awareness about the Good Roads Movement and the Lincoln Highway. As the primary highway system of Iowa matured, and the Lincoln Highway yielded to US 30, the highway was gradually straightened, leaving many towns off the route. More recently, new construction has routed traffic away from the straighter roads and onto sections of freeway and expressway.

=Lincoln Highway=

{{Infobox road small

|state=IA

|type=Lincoln

|location=Council Bluffs–Clinton

|length_mi=358

|length_ref=

|formed=1913

|deleted=1928

}}

US 30 was created with the U.S. Highway System in 1926, but the route it takes dates back to 1913, when the Lincoln Highway Association (LHA) designated the route across the country. The brainchild of Carl Fisher, the Lincoln Highway was the first highway to cross the United States, connecting New York City to San Francisco. In Iowa, it was uncertain exactly where the Lincoln Highway would run. As of August 1913, no definite route had been planned; the only certainty was the route would pass through Iowa. Iowans raised over $5 million (equivalent to ${{Formatprice|{{Inflation|US-GDP|5000000|1913}}}} in {{Inflation-year|US-GDP}} dollars{{Inflation-fn|US-GDP}}) for the construction of the road. On September 14, 1913, the Lincoln Highway Association announced the route. It was {{convert|358|mi}} of dirt roads, connecting Clinton, DeWitt, Cedar Rapids, Tama, Marshalltown, Ames, Jefferson, Denison, Logan, and Council Bluffs. The route was marked by a red, white, and blue tricolor emblazoned with an L. The route markers were painted upon telephone poles, bridges, and nearby buildings to show travelers the way.

File:UPRR bridge over Lincoln Highway.jpg

While not ideal for transcontinental travel, Iowa's dirt roads were of high quality. Foreigners even compared them to the best roads in France. However, the same could not be said when they were wet. The mud was so thick and viscous it was nicknamed "gumbo". To show travelers the obvious benefits of paved roads, the Lincoln Highway Association began the process of creating seedling miles of paved roads. The idea, according to Henry B. Joy, then-president of the Lincoln Highway Association, was to show travelers, for {{convert|1|mi|spell=in}}, how fast and smooth their trip could be, only to bring them back to reality at the end of the mile. Seedling miles were placed at least {{convert|6|mi|spell=in}} from the nearest town and in areas where the terrain was rough. Between August 1918 and June 1919, Iowa's first seedling mile was built in Linn County, west of Mount Vernon. The ribbon of concrete, which was {{convert|16|ft|m}} wide, {{convert|7+1/2|in|cm}} thick, and crowned for drainage {{convert|1+1/2|in|cm}}, cost nearly $35,000 (equivalent to ${{Inflation|US-GDP|35000|1919|r=-3|fmt=c}} in {{Inflation-year|US-GDP}} dollars{{Inflation-fn|US-GDP}}) to build.

Despite the success of the seedling miles across the country, Iowa lagged behind other states in improving its roads. Before 1924, Iowa's 99 counties, not the state highway commission, were responsible for the construction and maintenance of the state's roads. In the 1920s, road paving cost {{convert|30000|$/mi}}, equivalent to {{convert|{{Inflation|US-GDP|30000|1913|r=-3}}|$/mi}} in {{Inflation-year|US-GDP}} dollars;{{Inflation-fn|US-GDP}} a major obstacle for county boards of supervisors that wanted to pave their roads. When counties could afford to build roads, the Iowa State Highway Commission required extensive grading to be performed before paving could occur. In 1922, only five percent of Iowa's roads, {{convert|334|mi}}, were paved. By 1924, twenty percent of the Lincoln Highway in Iowa had been paved, and by 1931, it was paved continuously from New York City to Missouri Valley, Iowa.

=1930s–1950s=

{{multiple image

| direction = vertical

| header = Historical US 30 route markers

| width = 100

| image1 = US 30 Iowa 1926.svg

| alt1 = US 30 route marker

| caption1 = 1926 design

| image2 = US 30 (1948).svg

| alt2 = US 30 route marker

| caption2 = 1948 design used at intersections

| image3 = US 30 (1961).svg

| alt3 = US 30 route marker

| caption3 = 1961 design

}}

When the Lincoln Highway became U.S. Highway 30 in 1926, the route was {{convert|358|mi}} long and passed through every town along the way. Starting in the 1930s, the route's alignment began to be straightened. By the mid-1930s, it was routed west of Missouri Valley on old Iowa 130. The US 30 alignment south of Missouri Valley became U.S. Highway 30 Alternate. By 1952, it had moved south of Marshalltown and was replaced by Iowa 330 and a {{convert|17|mi|adj=on|spell=in}} southern jaunt through Belle Plaine had been replaced by a straight road. In 1955, a couple of routing changes occurred. In Cedar Rapids, it began its move to the south, avoiding the downtown area, and in Clinton, it was rerouted over the Gateway Bridge, allowing Iowa 136 to cross the Lyons-Fulton Bridge. However, by 1957, the old alignment through Clinton and across the Lyons-Fulton Bridge was numbered U.S. Highway 30 Alternate.

=1960s–1980s=

In the 1960–1970s, Iowa DOT started to build freeway segments along US 30. In 1965, it was straightened and rerouted to the south of Ogden and Boone along an {{convert|11|mi|adj=on|spell=in}}, four-lane stretch of road. By the end of the 1960s, both of the alternate routes had been turned over to local jurisdictions. The western route became Iowa 183, and the eastern route reverted to Iowa 136. By 1973, that new stretch of road had been extended {{convert|14|mi|spell=in}} along a four-lane bypass around Ames. The old alignment became Iowa 930. In eastern Iowa, a new, {{convert|20|mi|km|adj=mid|-long|spell=in}} freeway connected DeWitt and Clinton by 1976. By 1985, the bypass of Cedar Rapids had been completed from 16th Avenue SW to Iowa 13 near Bertram. The bypass was extended {{convert|5|mi|spell=in|0}} further west in 1989. Between 1996 and 2000, an $8.2-million extension (equivalent to ${{formatprice|{{inflation|US-GDP|8200000|1996}}|-3}} in {{Inflation-year|US-GDP}} dollars{{inflation-fn|US-GDP}}) was built to connect the bypass to the western intersection of US 218.

Since the Cedar Rapids bypass was completed in 1985, on occasion, traffic has had to be rerouted off of US 30. The bypass's proximity to the Union Pacific Railroad mainline resulted in an elevated roadway between Edgewood Road and Sixth Street SW. When strong winds come from the south, fog produced by an Archer Daniels Midland plant adjacent to the highway billows over the road making driving dangerous. The Iowa DOT set up an emergency detour from Edgewood Road SW north to 16th Avenue SW east to 6th Street SW back to US 30. The frequency of fog-related detours has decreased in recent years due to improved technology and the plant's expansion and relocation of cooling towers away from the highway.

=1990s to the present=

The 1990s saw more construction of four-lane roads along US 30. Stretches of four-lane roads that had already been constructed were extended towards other communities. In Story County, it was widened to four lanes from the I-35 interchange to US 65 at Colo. The original 1950s-era bypass of Marshalltown was itself bypassed in 1997 by a freeway {{convert|3/4|mi|spell=in}} south of the original bypass. That road, Iowa Avenue in Marshalltown, was designated as U.S. Route 30 Business, the first business route along US 30 in Iowa. The four-lane stretch southeast of Cedar Rapids was extended another {{convert|5|mi|spell=in}} to a point {{convert|2|mi|spell=in}} west of Mount Vernon, costing $5.6 million (equivalent to ${{formatprice|{{inflation|US-GDP|5600000|1996}}|-3}} in {{Inflation-year|US-GDP}} dollars{{inflation-fn|US-GDP}}) to build.

Since the beginning of the 21st century, Iowa DOT has continued to widen US 30 to four lanes. In 2004, an $18.6-million (equivalent to ${{formatprice|{{inflation|US-GDP|18600000|1996}}|-3}} in {{Inflation-year|US-GDP}} dollars{{inflation-fn|US-GDP}}), four-lane section opened from east of Marshalltown to the Meskwaki Settlement west of Tama, bypassing Le Grand. In 2010, two sections of expressway were completed. A {{convert|7+1/2|mi|km|0|adj=mid|-long|spell=in}} section from Colo to State Center opened to westbound travelers on November 29, while the eastbound lanes opened a week later. The {{convert|7+1/2|mi|km|0|adj=mid|-long|spell=in}} section, which bypasses the Tama/Toledo area, opened in two segments. The first of which opened on November 1, and the second on November 25. On July 7, 2011, a section from State Center to Iowa 330 opened in Marshall County. On November 22, 2019, an {{convert|8|mi|km|spell=in|adj=on}} extension opened, bypassing Mt. Vernon and Lisbon. In June 2021, a {{convert|9|mi|km|adj=mid|-long|spell=in}} segment opened in Tama County.{{cite press release |first = Dustin |last = Skogerboe |url=https://www.news.iowadot.gov/newsandinfo/2021/06/portion-of-us-30-four-lane-highway-now-open-in-tama-county.html| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/https://www.news.iowadot.gov/newsandinfo/2021/06/portion-of-us-30-four-lane-highway-now-open-in-tama-county.html| archive-date=November 24, 2021|title=Portion of U.S. 30 Four Lane Highway Now Open in Tama County |date=June 4, 2021 |publisher = Iowa Department of Transportation |access-date = June 29, 2021 }}{{cbignore}}

=Legacy of the Lincoln Highway=

File:Lincoln Hwy PA140789.jpg

While the Lincoln Highway has not been an official route for {{#expr:{{CURRENTYEAR}}-1926}} years, it is still a source of pride in the communities and regions through which it passed. Nearly 85 percent of the original Lincoln Highway is still drivable, although much is gravel. Most of what is drivable is either along US 30 or within {{convert|1|mi|spell=in}}. The Lincoln Highway bridge in Tama was built in 1915. It was restored in the 1980s after local officials feared losing the then-deteriorating bridge. Preston's Service Station, a landmark of Belle Plaine, has become a Lincoln Highway museum. Monuments were built along the route to honor not only Abraham Lincoln, but to honor Iowans who were influential for planning its route.

In 1992, the Lincoln Highway Association was reformed with a chapter in each state through which the highway passed. The new LHA is a historical preservation group that wants to preserve the remaining sections of the highway. The Iowa chapter of the LHA has, since 2008, sponsored a tour of the Lincoln Highway. To keep friendly to classic cars, the tour does not travel upon the sections of the road which are gravel. After years of lobbying by the LHA, the Iowa Department of Transportation, in 2006, designated the Lincoln Highway the first Iowa Heritage Byway. The 2010 Transportation Map of Iowa showed the path designated as the Iowa Heritage Byway for the first time.{{Clear}}

Major intersections

{{Jcttop|exit|length_ref=|exit_ref=}}

{{Jctint|exit

|river=Missouri River

|lspan=2

|mile=0.000

|mspan=2

|espan=22

|road={{Jct|state=NE|US|30|dir1=west|Lincoln||city1=Blair}}

|notes=Continuation into Nebraska

}}

{{Jctbridge

|mile=none

|bridge=Blair Bridge; Nebraska–Iowa state line

}}

{{IAint

|county=Harrison

|cspan=7

|location=Missouri Valley

|lspan=3

|mile=9.246

|road={{Jct|state=IA|I|29|city1=Council Bluffs|city2=Sioux City}}

|notes=I-29 exit 75

}}

{{IAint

|mile=10.617

|road=N. 1st Street

|notes=Former Iowa 183, US 75

}}

{{IAint

|mile=10.978

|road={{Jct|state=IA|Lincoln||name1=S. 6th Street}}

|notes=Former US 30, Iowa 183, and US 75

}}

{{IAint

|location=Logan

|mile=19.291

|road={{Jct|state=IA|IA|127|dir1=west|city1=Magnolia|city2=Mondamin}}

}}

{{IAint

|township=Jefferson

|ctdab=Harrison

|mile=23.178

|road={{Jct|state=IA|IA|44|dir1=east|city1=Portsmouth}}

}}

{{IAint

|location=Dunlap

|lspan=2

|type=concur

|mile=37.754

|road={{Jct|state=IA|IA|37|dir1=east|city1=Earling}}

|notes=Western end of Iowa 37 overlap

}}

{{IAint

|type=concur

|mile=37.989

|road={{Jct|state=IA|IA|37|dir1=west|city1=Soldier}}

|notes=Eastern end of Iowa 37 overlap

}}

{{IAint

|county=Crawford

|cspan=2

|location=Denison

|lspan=2

|type=concur

|mile=51.145

|road={{Jct|state=IA|US|59|dir1=south|IA|141|dir2=east|city1=Harlan}}

|notes=Western end of US 59 / Iowa 141 overlap

}}

{{IAint

|type=concur

|mile=54.547

|road={{Jct|state=IA|US|59|dir1=north|IA|141|dir2=west|IA|39|to3=39|city1=Ida Grove}}

|notes=Eastern end of US 59 / Iowa 141 overlap

}}

{{IAint

|county=Carroll

|cspan=4

|location=Arcadia

|mile=72.723

|road={{Jct|state=IA|CR|M68|city1=Arcadia}}

|notes=Former Iowa 285

}}

{{IAint

|location=Carroll

|mile=81.366

|road={{Jct|state=IA|US|71|city1=Lake View|city2=Audubon}}

}}

{{IAint

|location=Glidden

|mile=89.449

|road={{Jct|state=IA|CR|N41|dir1=north|CR|N44|dir2=south|city1=Lanesboro|city2=Lake City|city3=Coon Rapids}}

|notes=Former Iowa 286

}}

{{IAint

|township=Glidden

|ctdab=Carroll

|mile=93.442

|road={{Jct|state=IA|Lincoln||dir1=east}}

|notes=Former US 30

}}

{{IAint

|county=Greene

|cspan=5

|location=Ralston

|mile=95.117

|road={{Jct|state=IA|Lincoln|}}

|notes=Former US 30

}}

{{IAint

|township1=Kendrick

|township2=Scranton

|ctdab=Greene

|mile=99.237

|road={{Jct|state=IA|IA|25|dir1=south|Lincoln||city1=Scranton}}

|notes=Former US 30

}}

{{IAint

|location=Jefferson

|mile=108.198

|road={{Jct|state=IA|IA|4|city1=Jefferson|city2=Churdan}}

}}

{{IAint

|location=Grand Junction

|lspan=2

|mile=115.242

|road={{Jct|state=IA|IA|144|city1=Rippey|city2=Paton}}

}}

{{IAint

|mile=117.003

|road={{Jct|state=IA|Lincoln||dir1=west|CR|E53}}

|notes=Former US 30

}}

{{IAint

|county=Boone

|cspan=7

|township1=Amaqua

|township2=Beaver

|ctdab=Boone

|type=concur

|mile=122.260

|road={{Jct|state=IA|US|169|dir1=north|city1=Fort Dodge}}

|notes=Western end of US 169 overlap

}}

{{IAint

|location=Ogden

|lspan=2

|mile=125.294

|road={{Jct|state=IA|Lincoln||dir1=east|city1=Ogden}}

|notes=Former US 30

}}

{{IAint|exit

|type=concur

|mile=126.356

|exit=126

|road={{Jct|state=IA|US|169|dir1=south|city1=Ogden|city2=Adel}}

|notes=Eastern end of US 169 overlap

}}

{{IAint|exit

|location=Boone

|mile=134.009

|road={{Jct|state=IA|CR|R23|road|Story Street}}

|notes=Former Iowa 164

}}

{{IAint|exit

|township1=Des Moines

|township2=Worth

|ctdab=Boone

|mile=137.316

|exit=137

|road={{Jct|state=IA|IA|17|city1=Madrid|city2=Stanhope}}

}}

{{IAint|exit

|township=Colfax

|ctdab=Boone

|lspan=2

|mile=138.298

|road={{Jct|state=IA|Lincoln||dir1=west}}

|notes=Former US 30

}}

{{IAint|exit

|mile=141.790

|mile2=142.688

|exit=142

|road={{Jctname|state=IA|IA|930|name1=Lincoln Way|city1=Napier|countydab1=Boone|noshield=y}}

}}

{{IAint|exit

|county=Story

|cspan=9

|location=Ames

|lspan=5

|mile=144.885

|exit=144

|road={{Jct|state=IA|CR|R38|name1=South Dakota Avenue|city1=Kelley}}

}}

{{IAint|exit

|mile=147.003

|exit=146

|road=University Boulevard – Iowa State University

}}

{{IAint|exit

|type=concur

|mile=148.524

|exit=148

|road={{Jct|state=IA|BL|35|dab1=Ames|dir1=north|US|69|name2=Duff Avenue|city1=Huxley}}

|notes=Western end of I-35 Business overlap

}}

{{IAint|exit

|mile=149.745

|exit=150

|road=Dayton Avenue

}}

{{IAint|exit

|type=concur

|mile=150.534

|exit=151

|road={{Jct|state=IA|I|35|BL|35|dir2=ends|dab2=Ames|city1=Des Moines|location2=Minneapolis}}

|notes=I-35 exit 111; exits signed as 151A (south) and 151B (north); eastern end of I-35 Business overlap

}}

{{IAint|exit

|township=Grant

|mile=152.034

|exit=153

|road=580th Avenue

|notes=

}}

{{IAint|exit

|location=Nevada

|lspan=2

|mile=156.620

|road=S. 6th Street

|notes=Former Iowa 133

}}

{{IAint|exit

|mile=157.595

|exit=157

|road=19th Street – Nevada

}}

{{IAint|exit

|location=Colo

|mile=164.057

|exit=164

|road={{Jct|state=IA|US|65|city1=Des Moines|city2=Iowa Falls}}

}}

{{IAint|exit

|county=Marshall

|cspan=9

|location=State Center

|mile=171.479

|road=Durham Avenue

|notes=Former Iowa 234

}}

{{IAint|exit

|township=Washington

|ctdab=Marshall

|mile=179.938

|exit=179

|road={{Jct|state=IA|IA|330|city1=Albion|city2=Melbourne|city3=Des Moines}}

|notes=Des Moines only signed westbound

}}

{{IAint|exit

|township=Timber Creek

|lspan=2

|ctdab=Marshall

|type=incomplete

|mile=180.641

|mile2=181.102

|exit=181

|road={{Jct|state=IA|US-Bus|30|dab1=Marshalltown|dir1=east|name1=Iowa Avenue}}

|notes=Eastbound exit and westbound entrance only

}}

{{IAint|exit

|type=incomplete

|mile=182.023

|exit=182

|road=Oaks Avenue, Highland Acres Road

|notes=Westbound exit and eastbound entrance only

}}

{{IAint|exit

|location=Marshalltown

|lspan=2

|mile=184.531

|exit=185

|road={{Jct|state=IA|IA|14|city1=Newton|location2=Marshalltown Business District}}

}}

{{IAint|exit

|mile=186.013

|exit=186

|road={{Jct|state=IA|US-Bus|30|dab1=Marshalltown|dir1=west|name1=18th Avenue}}

|notes=US 30 Business signed westbound only

}}

{{IAint|exit

|township=Le Grand

|ctdab=Marshall

|mile=187.722

|road={{Jct|state=IA|Lincoln||dir1=west|name1=Shady Oaks Road}}

|notes=Former US 30

}}

{{IAint|exit

|location=Le Grand

|lspan=2

|mile=191.182

|exit=192

|road={{Jct|state=IA|IA|146|dir1=south|Lincoln||dir2=east|CR|T37|dir3=north|city1=Le Grand|city2=Grinnell}}

}}

{{IAint|exit

|mile=192.176

|espan=2

|road=Main Street

|notes=Former US 30

}}

{{IAint

|county=Tama

|cspan=5

|township=Indian Village

|ctdab=Tama

|mile=194.125

|road={{Jct|state=IA|CR|T47|city1=Montour}}

|notes=Former Iowa 135

}}

{{IAint|exit

|township=Toledo

|ctdab=Tama

|type=incomplete

|mile=199.950

|mile2=200.204

|exit=—

|road={{Jct|state=IA|US-Bus|30|dab1=Tama–Toledo|city1=Toledo}}

|notes=Westbound exit and eastbound entrance only

}}

{{IAint|exit

|location=Toledo

|mile=202.037

|exit=202

|road={{jct|state=IA|US|63|city1=Tama|city2=Toledo}}

}}

{{IAint|exit

|township=Tama

|ctdab=Tama

|mile=204.223

|exit=204

|road={{Jct|state=IA|US-Bus|30|dab1=Tama–Toledo|Lincoln||dir1=west|city1=Tama}}

|notes=US 30 Business only signed eastbound

}}

{{IAint|exit

|township=Otter Creek

|ctdab=Tama

|mile=208.877

|road={{Jct|state=IA|Lincoln||dir1=east|CR|E66|city1=Chelsea}}

|notes=Former US 30, Iowa 212

}}

{{IAint|exit

|county1=Tama

|county2=Benton

|township1=York

|ctdab1=Tama

|township2=Kane

|ctdab2=Benton

|mile=217.222

|exit=217

|road={{Jct|state=IA|IA|21|city1=Belle Plaine|city2=Dysart}}

|notes=Interchange opened on August 30, 2023

}}

{{IAint|exit

|county=Benton

|cspan=7

|township=Kane

|ctdab=Benton

|lspan=2

|mile=220.037

|espan=3

|road={{Jct|state=IA|Lincoln||dir1=west|CR|V40|city1=Belle Plaine}}

|notes=Former US 30, Iowa 131

}}

{{IAint

|mile=222.046

|road={{Jct|state=IA|CR|V42|city1=Keystone}}

|notes=Former Iowa 200

}}

{{IAint

|township=Union

|ctdab=Benton

|mile=228.036

|road={{Jct|state=IA|CR|V66|city1=Van Horne|city2=Blairstown}}

|notes=Former Iowa 82

}}

{{IAint|exit

|township=Eldorado

|ctdab=Benton

|lspan=2

|type=concur

|mile=231.004

|exit=231

|road={{Jct|state=IA|US|218|dir1=north|city1=Vinton}}

|notes=Western end of US 218 overlap

}}

{{IAint|exit

|mile=239.956

|espan=3

|road={{Jct|state=IA|CR|W14|city1=Newhall}}

|notes=Former Iowa 287

}}

{{IAint

|township=Fremont

|ctdab=Benton

|lspan=2

|mile=237.000

|road={{Jct|state=IA|CR|W24|city1=Norway}}

|notes=Former Iowa 201

}}

{{IAint

|mile=239.985

|road={{Jct|state=IA|CR|W28|city1=Atkins}}

|notes=Former Iowa 279

}}

{{IAint|exit

|county=Linn

|cspan=10

|township=Clinton

|ctdab=Linn

|mile=243.114

|mile2=244.504

|exit=246

|road={{Jct|state=IA|IA|100|dir1=east|city1=Cedar Rapids|city2=Marion}}
80th Street SW to 16th Avenue SW – Fairfax

|notes=Eastbound signed exits 246A (Iowa 100) and 246B (80th Street SW); former US 30

}}

{{IAint|exit

|location=Cedar Rapids

|lspan=6

|type=concur

|mile=246.126

|exit=248

|road={{Jct|state=IA|US|151|dir1=south|US-Bus|151|dab2=Cedar Rapids|dir2=north|name2=Williams Boulevard SW|city1=Amana Colonies}}

|notes=Western end of US 151 overlap; former Iowa 149

}}

{{IAint|exit

|mile=247.619

|exit=250

|road=Edgewood Road SW

}}

{{IAint|exit

|mile=249.683

|exit=252A

|road=6th Street SW – Hawkeye Downs

|notes=Former US 218, US 30

}}

{{IAint|exit

|type=concur

|mile=250.017

|exit=252
B–C

|road={{Jct|state=IA|I|380|US|218|dir2=south|IA|27|extra=Airport|city1=Cedar Rapids|city2=Iowa City|location3=Airport}}

|notes=I-380 exit 16; eastern end of US 218 overlap

}}

{{IAint|exit

|mile=250.694

|exit=253

|road=Kirkwood Boulevard SW, Bowling Street SW

}}

{{IAint|exit

|mile=251.693

|exit=254

|road={{Jct|state=IA|CR|W6E|name1=C Street SW|city1=Ely}}

|notes=Signed as exits 254A (south) and 254B (north) eastbound

}}

{{IAint|exit

|township=Bertram

|ctdab=Linn

|type=concur

|mile=256.630

|exit=259

|road={{Jct|state=IA|US|151|dir1=north|IA|13|dir2=north|city1=Marion}}

|notes=Eastern end of US 151 overlap

}}

{{IAint|exit

|township=Franklin

|ctdab=Linn

|mile=261.199

|road=Business 30 SW

|notes=Former US 30

}}

{{IAint|exit

|location=Mount Vernon

|mile=262.668

|exit=265

|road={{Jct|state=IA|IA|1|city1=Mount Vernon|city2=Solon|location3=Cornell College|location4=Historic Districts}}

|notes=Exit opened November 22, 2019

}}

{{IAint|exit

|county1=Linn

|county2=Cedar

|township1=Franklin

|ctdab1=Linn

|township2=Pioneer

|ctdab2=Cedar

|mile=266.147

|exit=268

|road=Lisbon

|notes=Exit opened November 22, 2019

}}

{{IAint|exit

|county=Cedar

|cspan=5

|location=Stanwood

|type=concur

|mile=277.743

|road={{Jct|state=IA|IA|38|dir1=north|name1=Ash Street|city1=Olin}}

|notes=Western end of Iowa 38 overlap

}}

{{IAint|exit

|township1=Fremont

|township2=Dayton

|ctdab=Cedar

|mile=278.758

|espan=5

|road={{Jct|state=IA|IA|38|dir1=south|city1=Tipton}}

|notes=Eastern end of Iowa 38 overlap

}}

{{IAint

|location=Clarence

|mile=282.745

|road={{Jct|state=IA|Lincoln||dir1=east|CR|X64|to3=y|IA|130}}

|notes=Former US 30

}}

{{IAint

|township=Massillon

|ctdab=Cedar

|lspan=2

|mile=287.121

|road={{Jct|state=IA|Lincoln||dir1=west}}

|notes=Former US 30

}}

{{IAint

|mile=288.005

|road={{Jct|state=IA|Lincoln||dir1=east}}

|notes=Former US 30

}}

{{IAint

|county=Clinton

|cspan=10

|township=Spring Rock

|ctdab=Clinton

|mile=297.105

|road={{Jct|state=IA|Lincoln|dir1=west}}

|notes=Former US 30

}}

{{IAint|exit

|location=DeWitt

|lspan=3

|type=concur

|mile=308.348

|mile2=308.885

|exit=311

|road={{Jct|state=IA|US|61|dir1=north|city1=Maquoketa}}
{{Jct|state=IA|Lincoln||dir1=east|city1=DeWitt}}

|notes=Western end of US 61 overlap; former US 30

}}

{{IAint|exit

|mile=309.759

|mile2=310.329

|exit=312

|road={{Jct|state=IA|US|61|dir1=south|city1=Davenport}}

|notes=Eastern end of US 61 overlap

}}

{{IAint|exit

|mile=311.772

|exit=313

|road=6th Avenue – DeWitt

|notes=Former US 61, Iowa 956

}}

{{IAint|exit

|township1=De Witt

|township2=Eden

|ctdab=Clinton

|mile=316.368

|road={{Jct|state=IA|Lincoln||dir1=west|CR|Z24}}

|notes=Former US 30, Iowa 948

}}

{{IAint|exit

|township1=Eden

|township2=Camanche

|ctdab=Clinton

|mile=321.372

|exit=323

|road={{Jct|state=IA|CR|Z36|city1=Low Moor|city2=Elvira}}

|notes=Former Iowa 391

}}

{{IAint|exit

|location=Clinton

|lspan=4

|type=concur

|mile=327.177

|road={{Jct|state=IA|US|67|dir1=south|GRR||name2=Washington Boulevard|city1=Camanche}}

|notes=Western end of US 67 overlap; US 67 is the Great River Road

}}

{{IAint|exit

|mile=327.422

|espan=5

|road={{Jct|state=IA|Lincoln||name1=Harrison Drive}}

|notes=Former US 30

}}

{{IAint

|mile=330.164

|road={{Jct|state=IA|US|30|dir1=west|nolink1=y|US|67|dir2=south|name2=S. 4th Street}}

|notes=One-way couplet

}}

{{IAint

|type=concur

|mile=330.465

|road={{Jct|state=IA|US|67|dir1=north|GRR||name2=S. 3rd Street|road|8th Avenue South}}

|notes=Eastern end of US 67 overlap

}}

{{Jctbridge

|river=Mississippi River

|lspan=2

|mile=330.856

|mspan=2

|bridge=Gateway Bridge; Iowa–Illinois state line

}}

{{ILint

|mile=none

|road={{Jct|state=IL|US|30|dir1=east|city1=Morrison}}

|notes=Continuation into Illinois

}}

{{Jctbtm|exit|keys=concur,incomplete}}

See also

References

{{reflist|refs=

{{IowaDOT|2012-05-19|year=2011}}

{{cite web|url=https://highways.dot.gov/highway-history/general-highway-history/lincoln-highway| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/https://www.fhwa.dot.gov/infrastructure/lincoln.cfm| archive-date=November 24, 2021|title=The Lincoln Highway|last=Weingroff|first=Richard F.|date=March 30, 2009|work=Highway History|publisher=Federal Highway Administration|access-date=March 1, 2010}}{{cbignore}}

{{cite web|url=http://www.iowadotmaps.com/msp/pdf/Rail_Base.pdf|title=Iowa State Railroad Map|last=Iowa Department of Transportation|date=July 1, 2008|access-date=March 1, 2010|archive-url=https://web.archive.org/web/20070813162738/http://www.iowadotmaps.com/msp/pdf/Rail_Base.pdf|archive-date=August 13, 2007|url-status=dead}}

{{cite web|url=http://ortho.gis.iastate.edu/client.cgi?zoom=5&x0=729390&y0=4633029&layer=drg24&action=pan&pwidth=900&pheight=900&x=129&y=478|title=Iowa Geographic Map Server|last=Iowa State University|access-date=July 4, 2010|archive-date=November 24, 2021|archive-url=https://web.archive.org/web/20211124141609/https://ortho.gis.iastate.edu/client.cgi?zoom=5&x0=729390&y0=4633029&layer=drg24&action=pan&pwidth=900&pheight=900&x=129&y=478|url-status=live}}

{{cite book|last1=Rogers|first1=Leah D.|last2=Kernek|first2=Clare L.|title=Lincoln Highway Associations "Object Lesson": The Seedling Mile in Linn County, Iowa|url=http://www.iowadot.gov/ole/documents/TheSeedlingMile.pdf|archive-url=https://web.archive.org/web/20100602061200/http://www.iowadot.gov/ole/documents/TheSeedlingMile.pdf|archive-date=June 2, 2010|url-status=live|year=2004|pages=2–3, 9|access-date=December 29, 2010}}

{{cite book|last=Thompson|first=William H.|title=Transportation in Iowa: A Historical Summary|chapter=The Transportation Structure of Iowa: 1900–1920|publisher=Iowa Department of Transportation|pages=100–101|year=1989|isbn=0-9623167-0-9|url=https://iowadot.gov/history/pdfs/TransInIowa/Chapter5.pdf#page=18|archive-url=https://web.archive.org/web/20201029022340/https://iowadot.gov/history/pdfs/TransInIowa/Chapter5.pdf|archive-date=October 29, 2020|url-status=live}}

{{cite map|publisher=Iowa State Highway Commission|url=http://www.iowadotmaps.com/msp/historical/pdf/1952_front.pdf|archive-url=https://web.archive.org/web/20110807060208/http://www.iowadot.gov/maps//msp/historical/pdf/1952_front.pdf|archive-date=August 7, 2011|url-status=live|title=Iowa State Highway Map|year=1952|section=I18-J19|access-date=April 10, 2010|format=PDF}}

{{cite map|publisher=Iowa State Highway Commission|url=http://www.iowadotmaps.com/msp/historical/pdf/1956_back.pdf|archive-url=https://web.archive.org/web/20150916040224/http://www.iowadot.gov/maps/msp/historical/pdf/1952_back.pdf|url-status=live|archive-date=September 16, 2015|title=Iowa State Highway Map|year=1956|inset=Clinton|access-date=April 10, 2010|format=PDF}}

{{cite news|title=Completing 6 Highway Corridors a Priority for State|date=November 24, 1996|work=The Gazette|page=B4|location=Cedar Rapids–Iowa City}}

{{cite news|title=Highway 30 Sign Still Not Repaired|last=Hogan|first=Dick|date=December 31, 2001|work=The Gazette|page=5|location=Cedar Rapids–Iowa City}}

{{cite map|publisher=Iowa Department of Transportation|url=http://www.iowadotmaps.com/msp/pdf/current/stmapmain.pdf|archive-url=https://web.archive.org/web/20060329205613/http://www.iowadotmaps.com/msp/pdf/current/stmapmain.pdf|archive-date=March 29, 2006|url-status=live|title=Iowa State Highway Map|year={{CURRENTYEAR}}|section=A-N4|access-date=April 13, 2010|format=PDF}}

{{cite web |title=Road Network (Portal) |url=https://gis.iowadot.gov/agshost/rest/services/RAMS/Road_Network/FeatureServer/0| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/https://gis.iowadot.gov/agshost/rest/services/RAMS/Road_Network/FeatureServer/0| archive-date=November 24, 2021 |publisher=Iowa Department of Transportation |access-date=April 18, 2021 |location=Ames |format=ESRI shapefile |date=April 9, 2021}}{{cbignore}}

{{cite news |last1=King |first1=Grace |title=Highway 30 bypass open around Mount Vernon and Lisbon |url=https://www.thegazette.com/subject/news/highway-30-bypass-lisbon-mount-vernon-20191122 |access-date=December 20, 2019 |work=The Gazette |date=November 22, 2019 |location=Cedar Rapids, Iowa |archive-date=February 6, 2020 |archive-url=https://web.archive.org/web/20200206073808/https://www.thegazette.com/subject/news/highway-30-bypass-lisbon-mount-vernon-20191122 |url-status=live }}

{{cite web|url=http://www.uprr.com/aboutup/maps/attachments/upcomnam.pdf|title=UPRR Common Line Names|last=Union Pacific Railroad|access-date=September 22, 2010|archive-date=May 14, 2011|archive-url=https://web.archive.org/web/20110514174900/http://www.uprr.com/aboutup/maps/attachments/upcomnam.pdf|url-status=live}}

{{cite web|url=http://pubs.usgs.gov/info/loess/| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/http://pubs.usgs.gov/info/loess/| archive-date=November 24, 2021|title=Geology of the Loess Hills, Iowa|publisher=United States Geological Survey|date=July 1999|access-date=July 10, 2010}}{{cbignore}}

{{cite web|url=http://ortho.gis.iastate.edu/client.cgi?zoom=2&x0=261164&y0=4605877&layer=drg24&action=zoom5&pwidth=600&pheight=600|title=Iowa Geographic Map Server|last=Iowa State University|location=Harrison County|year=2005|access-date=September 23, 2010|archive-date=November 24, 2021|archive-url=https://web.archive.org/web/20211124141509/https://ortho.gis.iastate.edu/client.cgi?zoom=2&x0=261164&y0=4605877&layer=drg24&action=zoom5&pwidth=600&pheight=600|url-status=live}}

{{cite map|publisher=Rand, McNally & Co|title=General Atlas of the World|year=1898|page=47|section=F4}}

{{cite web|url=http://www.public.iastate.edu/~isu150/cal/07/09/blvd.shtml|url-status=dead|archive-url=https://web.archive.org/web/20090401211250/http://www.public.iastate.edu/~isu150/cal/07/09/blvd.shtml|archive-date=April 1, 2009|title=Sesquicentennial: Iowa State University|last=Iowa State University|date=September 2007|access-date=January 31, 2011}}

{{cite book|last=Ames Convention & Visitors Bureau|title=2008 Ames Area Visitors Guide|year=2008|pages=4–5}}

{{cite news|url=http://tamatoledonews.com/page/content.detail/id/504057/Portion-of-U-S--30-Expressway-slated-to-open-Monday.html| url-status=dead | archive-url=https://web.archive.org/web/20110716191524/http://tamatoledonews.com/page/content.detail/id/504057/Portion-of-U-S--30-Expressway-slated-to-open-Monday.html| archive-date=July 16, 2011 | title=Portion of U.S. 30 Expressway slated to open Monday|last=Speer|first=John|date=October 27, 2010|work=Tama News-Herald/Toledo Chronicle|access-date=January 16, 2011}}{{cbignore}}

{{cite map|publisher=Iowa Department of Transportation|title=Clinton inset|url=http://www.iowadotmaps.com/msp/pdf/current/clinton.pdf|access-date=July 11, 2010|year=2010|format=PDF|archive-date=May 8, 2010|archive-url=https://web.archive.org/web/20100508122756/http://www.iowadotmaps.com/msp/pdf/current/clinton.pdf|url-status=live}}

{{cite news|title=Says Iowa Will Get Lincoln Highway|date=September 3, 1913|work=Des Moines Tribune|page=3|url=https://www.newspapers.com/clip/90054643/says-iowa-will-get-lincoln-highway/|via=Newspapers.com|access-date=December 5, 2021|archive-date=December 5, 2021|archive-url=https://web.archive.org/web/20211205042854/https://www.newspapers.com/clip/90054643/says-iowa-will-get-lincoln-highway/|url-status=live}}

{{cite book|last=Gladding|first=Effie Price|title=Across the Continent by the Lincoln Highway|publisher=Brentano's|location=New York|year=1915|page=111|chapter=Chapter VII|url=https://archive.org/stream/acrosscontinentb00glad/acrosscontinentb00glad_djvu.txt|access-date=March 1, 2010}}

{{cite web|url=http://www.iptv.org/iowapathways/mypath.cfm?ounid=ob_000298|title=Rules of the Road:Highway Safety|date=2009|work=Iowa Pathways|publisher=Iowa Public Television|access-date=March 1, 2010|archive-date=June 15, 2010|archive-url=https://web.archive.org/web/20100615211421/http://iptv.org/iowapathways/mypath.cfm?ounid=ob_000298|url-status=live}}

{{cite web|url=http://ortho.gis.iastate.edu/client_pls.cgi?zoom=10&x0=261641&y0=4578967&layer=ortho_1930&action=pan&pwidth=900&pheight=900|title=Iowa Geographic Map Server|last=Iowa State University|location=Pottawattamie County|year=2005|access-date=April 10, 2010|archive-date=November 24, 2021|archive-url=https://web.archive.org/web/20211124141513/https://ortho.gis.iastate.edu/client_pls.cgi?zoom=10&x0=261641&y0=4578967&layer=ortho_1930&action=pan&pwidth=900&pheight=900|url-status=live}}

{{cite map|publisher=Iowa State Highway Commission|url=http://www.iowadotmaps.com/msp/historical/pdf/1955_back.pdf|title=Iowa State Highway Map|year=1955|inset=Clinton|access-date=December 20, 2010|format=PDF}}

{{cite map|publisher=Iowa State Highway Commission|url=http://www.iowadotmaps.com/msp/historical/pdf/1957_back.pdf|title=Iowa State Highway Map|year=1957|inset=Clinton|access-date=April 10, 2010|format=PDF}}

{{cite map|publisher=Iowa State Highway Commission|url=http://www.iowadotmaps.com/msp/historical/pdf/1964_front.pdf|title=Iowa State Highway Map|year=1964|section=I11-12|access-date=December 20, 2010|format=PDF}}

{{cite map|publisher=Iowa State Highway Commission|url=http://www.iowadotmaps.com/msp/historical/pdf/1965_front.pdf|title=Iowa State Highway Map|year=1965|section=I11-12|access-date=April 24, 2010|format=PDF}}

{{cite map|publisher=Iowa State Highway Commission|url=http://www.iowadotmaps.com/msp/historical/pdf/1972_front.pdf|title=Iowa State Highway Map|year=1972|section=I12-13|access-date=December 20, 2010|format=PDF}}

{{cite map|publisher=Iowa State Highway Commission|url=http://www.iowadotmaps.com/msp/historical/pdf/1973_front.pdf|title=Iowa State Highway Map|year=1973|section=I12-13|access-date=April 10, 2010|format=PDF}}

{{cite map|publisher=Iowa Department of Transportation|url=http://www.iowadotmaps.com/msp/historical/pdf/1975_front.pdf|title=Iowa State Highway Map|year=1975|section=K4|access-date=December 20, 2010|format=PDF}}

{{cite map|publisher=Iowa Department of Transportation|url=http://www.iowadotmaps.com/msp/historical/pdf/1976_front.pdf|title=Iowa State Highway Map|year=1976|section=K4|access-date=April 10, 2010|format=PDF}}

{{cite map|publisher=Iowa Department of Transportation|url=http://www.iowadotmaps.com/msp/historical/pdf/1988_front.pdf|title=Iowa State Highway Map|year=1988|section=I4|access-date=December 20, 2010|format=PDF}}

{{cite map|publisher=Iowa Department of Transportation|title=Iowa State Highway Map|year=1989|section=I4}}

{{cite map|publisher=Iowa Department of Transportation|url=http://www.iowadotmaps.com/msp/historical/pdf/1999_front.pdf|title=Iowa State Highway Map|year=1999|section=H4|access-date=December 20, 2010|format=PDF}}

{{cite map|publisher=Iowa Department of Transportation|url=http://www.iowadotmaps.com/msp/historical/pdf/2000_front.pdf|title=Iowa State Highway Map|year=2000|section=H4|access-date=April 24, 2010|format=PDF}}

{{cite map|publisher=Iowa Department of Transportation|url=http://www.iowadotmaps.com/msp/historical/pdf/1997_front.pdf|title=Iowa State Highway Map|year=1997|section=I4|access-date=April 24, 2010|format=PDF}}

{{cite web|url=http://www.news.iowadot.gov/newsandinfo/2010/11/new-westbound-us-30-traffic-lanes-between-colo-and-state-center-open-today.html| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/http://www.news.iowadot.gov/newsandinfo/2010/11/new-westbound-us-30-traffic-lanes-between-colo-and-state-center-open-today.html| archive-date=November 24, 2021|title=New westbound U.S. 30 traffic lanes between Colo and State Center open today|last=Iowa Department of Transportation|date=November 29, 2010|access-date=January 16, 2011}}{{cbignore}}

{{cite web|url=http://www.news.iowadot.gov/newsandinfo/2010/12/eastbound-us-30-lanes-between-colo-and-state-center-now-open.html| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/http://www.news.iowadot.gov/newsandinfo/2010/12/eastbound-us-30-lanes-between-colo-and-state-center-now-open.html| archive-date=November 24, 2021|title=Eastbound U.S. 30 lanes between Colo and State Center now open|last=Iowa Department of Transportation|date=December 7, 2010|access-date=January 16, 2011}}{{cbignore}}

{{cite web|url=http://www.news.iowadot.gov/newsandinfo/2010/10/traffic-pattern-changes-on-us-30-near-tamatoledo-set-for-nov-1-1.html| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/http://www.news.iowadot.gov/newsandinfo/2010/10/traffic-pattern-changes-on-us-30-near-tamatoledo-set-for-nov-1-1.html| archive-date=November 24, 2021|title=Traffic pattern changes on U.S. 30 near Tama/Toledo set for Nov. 1|last=Iowa Department of Transportation|date=October 28, 2010|access-date=January 16, 2011}}{{cbignore}}

{{cite web|url=http://www.news.iowadot.gov/newsandinfo/2011/07/westbound-lanes-of-us-30-near-state-center-to-open-tomorrow.html| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/http://www.news.iowadot.gov/newsandinfo/2011/07/westbound-lanes-of-us-30-near-state-center-to-open-tomorrow.html| archive-date=November 24, 2021|title=Westbound lanes of U.S. 30 near State Center to open tomorrow|last=McDonald|first=Doug|date=July 6, 2011|publisher=Iowa Department of Transportation|access-date=August 22, 2012}}{{cbignore}}

{{cite news |url = https://www.thegazette.com/subject/news/highway-30-bypass-lisbon-mount-vernon-20191122 |title = Highway 30 bypass open around Mount Vernon and Lisbon |work = The Gazette |location = Cedar Rapids, Iowa |date = November 22, 2019 |access-date = August 14, 2020 |archive-date = February 6, 2020 |archive-url = https://web.archive.org/web/20200206073808/https://www.thegazette.com/subject/news/highway-30-bypass-lisbon-mount-vernon-20191122 |url-status = live }}

{{cite web|url=http://www.iowadot.gov/autotrails/bridges.aspx?Lincoln%20Highway|title=Historic Auto Trails: Lincoln Highway|last=Iowa Department of Transportation|access-date=April 24, 2010|archive-date=June 2, 2010|archive-url=https://web.archive.org/web/20100602063419/http://www.iowadot.gov/autotrails/bridges.aspx?Lincoln%20Highway|url-status=live}}

{{cite web|url=http://www.lincolnhighwayassoc.org/iowa/iowa/tamaCo/tama.html|title=Tama County|last=Iowa Lincoln Highway Association|access-date=April 25, 2010|url-status=dead|archive-url=https://web.archive.org/web/20101230101127/http://www.lincolnhighwayassoc.org/iowa/iowa/tamaCo/tama.html|archive-date=December 30, 2010}}

{{cite web|url=http://www.lincolnhighwayassoc.org/iowa/iowa/bentonCo/bplaine.html|title=Benton County|last=Iowa Lincoln Highway Association|access-date=April 28, 2010|url-status=dead|archive-url=https://web.archive.org/web/20100504030403/http://www.lincolnhighwayassoc.org/iowa/iowa/bentonCo/bplaine.html|archive-date=May 4, 2010}}

{{cite web|url=http://www.lincolnhighwayassoc.org/iowa/iowa/greeneCo/scranton.html|title=Greene County|last=Iowa Lincoln Highway Association|access-date=April 28, 2010|url-status=dead|archive-url=https://web.archive.org/web/20101231112700/http://www.lincolnhighwayassoc.org/iowa/iowa/greeneCo/scranton.html|archive-date=December 31, 2010}}

{{cite web|url=http://www.lincolnhighwayassoc.org/iowa/iowa/clintonCo/clinton.html|title=Clinton County|last=Iowa Lincoln Highway Association|access-date=April 28, 2010|url-status=dead|archive-url=https://web.archive.org/web/20101231113830/http://www.lincolnhighwayassoc.org/iowa/iowa/clintonCo/clinton.html|archive-date=December 31, 2010}}

{{cite web|url=http://www.lincolnhighwayassoc.org/about/| url-status=live | archive-url=https://ghostarchive.org/archive/20211124/http://www.lincolnhighwayassoc.org/about/| archive-date=November 24, 2021|title=Contact Us|last=Lincoln Highway Association|access-date=April 28, 2010}}{{cbignore}}

{{cite web|url=http://www.lincolnhighwayassoc.org/iowa/tour/motortour.html|title=ILHA Motor Tour|last=Iowa Lincoln Highway Association|date=March 17, 2010|access-date=April 28, 2010|url-status=dead|archive-url=https://web.archive.org/web/20090916122837/http://www.lincolnhighwayassoc.org/iowa/tour/motortour.html|archive-date=September 16, 2009}}

{{cite web|last=Iowa Lincoln Highway Association|title=Along the Lincoln Highway|date=Spring 2009|url=http://www.lincolnhighwayassoc.org/iowa/newsletter/nlpdfs/Spr09v14i1.pdf|access-date=April 28, 2010|url-status=dead|archive-url=https://web.archive.org/web/20101231042728/http://www.lincolnhighwayassoc.org/iowa/newsletter/nlpdfs/Spr09v14i1.pdf|archive-date=December 31, 2010}}

}}