US Bridges

N Carolina Ave over Winnebago River

Fair

Cerro Gordo County, Iowa · 000000000 · Structure no. 000000000008140

Built
1914
111 years old, rebuilt 2003
Condition
Fair
inspected January 2024
Type
Arch - Deck
Concrete
Length
116 ft
2 main spans
Daily traffic
2,278
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Carolina Ave over Winnebago River is a concrete arch - deck carrying N Carolina Ave over Winnebago River in Cerro Gordo County, Iowa. It was built in 1914 and reconstructed in 2003, so it is 111 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 2,278 vehicles a day, projected to reach 2,278 by 2044. The structure is 116 ft (35.4 m) long and 49 ft wide.

Location

Open in Google Maps
CarriesN Carolina Ave
CrossesWinnebago River
Location000000000
RouteCity Street 0
CountyCerro Gordo County
StateIowa
Coordinates43.15636, -93.19009
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJanuary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length116 ft (35.4 m)
Longest span56 ft (17.1 m)
Deck width49 ft (14.9 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,278 (2022)
Projected traffic2,278 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was N Carolina Ave over Winnebago River built?

It was built in 1914, making it 111 years old in 2025. It was reconstructed in 2003.

What condition is N Carolina Ave over Winnebago 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 January 2024.

How much traffic does N Carolina Ave over Winnebago River carry?

About 2,278 vehicles per day (2022 count).

How long is N Carolina Ave over Winnebago River?

The structure is 116 ft (35.4 m) long with a longest span of 56 ft (17.1 m) and a deck 49 ft wide.

Who owns N Carolina Ave over Winnebago River?

It is owned by the City or Municipal Highway Agency.