US Bridges

FM Stewart Av over Small Stream

Fair

Buchanan County, Iowa · 087070702 · Structure no. 000000000080790

Built
1963
62 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
118
2022 count
Owner
County
County Highway Agency

About this bridge

FM Stewart Av over Small Stream is a concrete culvert carrying FM Stewart Av over Small Stream in Buchanan County, Iowa. It was built in 1963, so it is 62 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 118 vehicles a day, projected to reach 118 by 2043. The structure is 32 ft (9.8 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM Stewart Av
CrossesSmall Stream
Location087070702
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.35933, -91.71474
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length32 ft (9.8 m)
Longest span15 ft (4.6 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic118 (2022)
Projected traffic118 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 Small Stream built?

It was built in 1963, making it 62 years old in 2025.

What condition is FM Stewart Av over Small Stream 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 Small Stream carry?

About 118 vehicles per day (2022 count).

How long is FM Stewart Av over Small Stream?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.

Who owns FM Stewart Av over Small Stream?

It is owned by the County Highway Agency.