US Bridges

FM Quonset Ave over W Br Buffalo Ck

Fair

Buchanan County, Iowa · 090083504 · Structure no. 000000000083751

Built
1979
46 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
125 ft
3 main spans
Daily traffic
98
2022 count
Owner
County
County Highway Agency

About this bridge

FM Quonset Ave over W Br Buffalo Ck is a concrete continuous slab carrying FM Quonset Ave over W Br Buffalo Ck in Buchanan County, Iowa. It was built in 1979, so it is 46 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 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 98 vehicles a day, projected to reach 98 by 2043. The structure is 125 ft (38.1 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesFM Quonset Ave
CrossesW Br Buffalo Ck
Location090083504
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.56406, -91.75852
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating33.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length125 ft (38.1 m)
Longest span49 ft (14.9 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98 (2022)
Projected traffic98 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FM Quonset Ave over W Br Buffalo Ck built?

It was built in 1979, making it 46 years old in 2025.

What condition is FM Quonset Ave over W Br Buffalo Ck 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 December 2023.

How much traffic does FM Quonset Ave over W Br Buffalo Ck carry?

About 98 vehicles per day (2022 count).

How long is FM Quonset Ave over W Br Buffalo Ck?

The structure is 125 ft (38.1 m) long with a longest span of 49 ft (14.9 m) and a deck 30 ft wide.

Who owns FM Quonset Ave over W Br Buffalo Ck?

It is owned by the County Highway Agency.