US Bridges

FM Stewart Av over Smith Creek

FairPosted for load

Buchanan County, Iowa · 088073004 · Structure no. 000000000081890

Built
1958
67 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
40
2021 count
Owner
County
County Highway Agency

About this bridge

FM Stewart Av over Smith Creek is a concrete slab carrying FM Stewart Av over Smith Creek in Buchanan County, Iowa. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 40 vehicles a day, projected to reach 40 by 2043. The structure is 32 ft (9.8 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM Stewart Av
CrossesSmith Creek
Location088073004
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.40839, -91.71451
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating33.1 US tons
Inventory rating16.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2021)
Projected traffic40 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM Stewart Av over Smith Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM Stewart Av over Smith Creek 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 2024.

How much traffic does FM Stewart Av over Smith Creek carry?

About 40 vehicles per day (2021 count).

How long is FM Stewart Av over Smith Creek?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 23 ft wide.

Who owns FM Stewart Av over Smith Creek?

It is owned by the County Highway Agency.