US Bridges

Lincoln-Main ST over Cedar River

Fair

Black Hawk County, Iowa · 000000000 · Structure no. 000000000501581

Built
1997
28 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
491 ft
5 main spans
Daily traffic
2,380
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lincoln-Main ST over Cedar River is a prestressed concrete continuous stringer/multi-beam or girder carrying Lincoln-Main ST over Cedar River in Black Hawk County, Iowa. It was built in 1997, so it is 28 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,380 vehicles a day, roughly 6% of them trucks, projected to reach 2,380 by 2044. The structure is 491 ft (149.7 m) long and 53 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLincoln-Main ST
CrossesCedar River
Location000000000
RouteCity Street 0
CountyBlack Hawk County
StateIowa
Coordinates42.53846, -92.44541
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79.9 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length491 ft (149.7 m)
Longest span102 ft (31.1 m)
Deck width53 ft (16.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,380 (2022)
Projected traffic2,380 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lincoln-Main ST over Cedar River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Lincoln-Main ST over Cedar River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Lincoln-Main ST over Cedar River carry?

About 2,380 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Lincoln-Main ST over Cedar River?

The structure is 491 ft (149.7 m) long with a longest span of 102 ft (31.1 m) and a deck 53 ft wide.

Who owns Lincoln-Main ST over Cedar River?

It is owned by the City or Municipal Highway Agency.