US Bridges

2nd Ave SW (wb) over Cedar River

Fair

Linn County, Iowa · 083072807 · Structure no. 000000000001300

Built
1906
119 years old, rebuilt 1965
Condition
Fair
inspected July 2024
Type
Arch - Deck
Concrete Continuous
Length
670 ft
9 main spans
Daily traffic
1,629
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

2nd Ave SW (wb) over Cedar River is a concrete continuous arch - deck carrying 2nd Ave SW (wb) over Cedar River in Linn County, Iowa. It was built in 1906 and reconstructed in 1965, so it is 119 years old, older 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 5 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 1,629 vehicles a day, projected to reach 1,629 by 2044. The structure is 670 ft (204.2 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries2nd Ave SW (wb)
CrossesCedar River
Location083072807
RouteCity Street 0
CountyLinn County
StateIowa
Coordinates41.97679, -91.66972
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadUnknown
Structure length670 ft (204.2 m)
Longest span83 ft (25.3 m)
Deck width78 ft (23.8 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,629 (2022)
Projected traffic1,629 by 2044
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 2nd Ave SW (wb) over Cedar River built?

It was built in 1906, making it 119 years old in 2025. It was reconstructed in 1965.

What condition is 2nd Ave SW (wb) 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 July 2024.

How much traffic does 2nd Ave SW (wb) over Cedar River carry?

About 1,629 vehicles per day (2022 count).

How long is 2nd Ave SW (wb) over Cedar River?

The structure is 670 ft (204.2 m) long with a longest span of 83 ft (25.3 m) and a deck 78 ft wide.

Who owns 2nd Ave SW (wb) over Cedar River?

It is owned by the City or Municipal Highway Agency.