US Bridges

Local over Small Stream

FairPosted for load

Shelby County, Iowa · 078390503 · Structure no. 000000000304440

Built
1957
68 years old
Condition
Fair
inspected March 2023
Type
Channel Beam
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
41
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Small Stream is a prestressed concrete channel beam carrying Local over Small Stream in Shelby County, Iowa. It was built in 1957, so it is 68 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. Its operating status is: posted for load restriction.

It carries about 41 vehicles a day, projected to reach 41 by 2043. The structure is 42 ft (12.8 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal
CrossesSmall Stream
Location078390503
RouteCounty Highway 0
CountyShelby County
StateIowa
Coordinates41.60238, -95.36065
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.3 US tons
Inventory rating24.3 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length42 ft (12.8 m)
Longest span41 ft (12.5 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2022)
Projected traffic41 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Small Stream built?

It was built in 1957, making it 68 years old in 2025.

What condition is Local 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 March 2023.

How much traffic does Local over Small Stream carry?

About 41 vehicles per day (2022 count).

How long is Local over Small Stream?

The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 20 ft wide.

Who owns Local over Small Stream?

It is owned by the County Highway Agency.