US Bridges

Local over Shell Rock River

Fair

Floyd County, Iowa · 094172803 · Structure no. 000000000154121

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
303 ft
4 main spans
Daily traffic
49
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Shell Rock River is a prestressed concrete stringer/multi-beam or girder carrying Local over Shell Rock River in Floyd County, Iowa. It was built in 1987, so it is 38 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 49 vehicles a day, projected to reach 49 by 2043. The structure is 303 ft (92.4 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLocal
CrossesShell Rock River
Location094172803
RouteCounty Highway 0
CountyFloyd County
StateIowa
Coordinates42.93633, -92.85207
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
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating71.1 US tons
Inventory rating27.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length303 ft (92.4 m)
Longest span81 ft (24.7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2022)
Projected traffic49 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Shell Rock River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Local over Shell 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 March 2023.

How much traffic does Local over Shell Rock River carry?

About 49 vehicles per day (2022 count).

How long is Local over Shell Rock River?

The structure is 303 ft (92.4 m) long with a longest span of 81 ft (24.7 m) and a deck 32 ft wide.

Who owns Local over Shell Rock River?

It is owned by the County Highway Agency.