US Bridges

Local over Little Rock River

Fair

Osceola County, Iowa · 100421901 · Structure no. 000000000263891

Built
1989
36 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
97 ft
6 main spans
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Little Rock River is a wood or timber stringer/multi-beam or girder carrying Local over Little Rock River in Osceola County, Iowa. It was built in 1989, so it is 36 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 21 vehicles a day, projected to reach 21 by 2044. The structure is 97 ft (29.6 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLocal
CrossesLittle Rock River
Location100421901
RouteCounty Highway 0
CountyOsceola County
StateIowa
Coordinates43.4763, -95.84506
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.7 US tons
Inventory rating24.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans6
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span16 ft (4.9 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic21 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Little Rock River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Local over Little Rock 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 November 2024.

How much traffic does Local over Little Rock River carry?

About 21 vehicles per day (2022 count).

How long is Local over Little Rock River?

The structure is 97 ft (29.6 m) long with a longest span of 16 ft (4.9 m) and a deck 20 ft wide.

Who owns Local over Little Rock River?

It is owned by the County Highway Agency.