US Bridges

3rd ST over West Nishnabotna River

Fair

Carroll County, Iowa · 200 W. of Front St. · Structure no. 000000000007580

Built
1953
72 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
541
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

3rd ST over West Nishnabotna River is a concrete continuous slab carrying 3rd ST over West Nishnabotna River in Carroll County, Iowa. It was built in 1953, so it is 72 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 541 vehicles a day, projected to reach 541 by 2044. The structure is 81 ft (24.7 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries3rd ST
CrossesWest Nishnabotna River
Location200 W. of Front St.
RouteCity Street 0
CountyCarroll County
StateIowa
Coordinates41.90914, -95.0686
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.9 US tons
Inventory rating20.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span31 ft (9.4 m)
Deck width31 ft (9.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic541 (2022)
Projected traffic541 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 3rd ST over West Nishnabotna River built?

It was built in 1953, making it 72 years old in 2025.

What condition is 3rd ST over West Nishnabotna 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 April 2024.

How much traffic does 3rd ST over West Nishnabotna River carry?

About 541 vehicles per day (2022 count).

How long is 3rd ST over West Nishnabotna River?

The structure is 81 ft (24.7 m) long with a longest span of 31 ft (9.4 m) and a deck 31 ft wide.

Who owns 3rd ST over West Nishnabotna River?

It is owned by the City or Municipal Highway Agency.