US Bridges

Local over So English River

PoorPosted for load

Poweshiek County, Iowa · 078143401 · Structure no. 000000000291481

Built
1980
45 years old
Condition
Poor
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

Local over So English River is a prestressed concrete tee beam carrying Local over So English River in Poweshiek County, Iowa. It was built in 1980, so it is 45 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 50 vehicles a day, projected to reach 50 by 2043. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLocal
CrossesSo English River
Location078143401
RouteCounty Highway 0
StateIowa
Coordinates41.52391, -92.46594
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating21.7 US tons
Inventory rating6.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic50 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Local over So English River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Local over So English River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does Local over So English River carry?

About 50 vehicles per day (2022 count).

How long is Local over So English River?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Local over So English River?

It is owned by the County Highway Agency.