US Bridges

School ST over Little Cedar River

Fair

Mitchell County, Iowa · 000000000 · Structure no. 000000000011081

Built
1986
39 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
236 ft
5 main spans
Daily traffic
470
2022 count
Owner
County
County Highway Agency

About this bridge

School ST over Little Cedar River is a concrete continuous slab carrying School ST over Little Cedar River in Mitchell County, Iowa. It was built in 1986, so it is 39 years old, younger 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 470 vehicles a day, roughly 16% of them trucks, projected to reach 470 by 2043. The structure is 236 ft (71.9 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSchool ST
CrossesLittle Cedar River
Location000000000
RouteCity Street 0
StateIowa
Coordinates43.43526, -92.77907
Functional classRural Major 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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating28 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length236 ft (71.9 m)
Longest span51 ft (15.5 m)
Deck width39 ft (11.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2022)
Projected traffic470 by 2043
Trucks16%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was School ST over Little Cedar River built?

It was built in 1986, making it 39 years old in 2025.

What condition is School ST over Little Cedar 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 December 2023.

How much traffic does School ST over Little Cedar River carry?

About 470 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is School ST over Little Cedar River?

The structure is 236 ft (71.9 m) long with a longest span of 51 ft (15.5 m) and a deck 39 ft wide.

Who owns School ST over Little Cedar River?

It is owned by the County Highway Agency.