US Bridges

Local over North English River

PoorPosted for load

Iowa County, Iowa · 079113204 · Structure no. 000000000189680

Built
1929
96 years old, rebuilt 1965
Condition
Poor
inspected March 2024
Type
Truss - Thru
Steel
Length
125 ft
1 main span
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

Local over North English River is a steel truss - thru carrying Local over North English River in Iowa County, Iowa. It was built in 1929 and reconstructed in 1965, so it is 96 years old, older 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 load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2044. The structure is 125 ft (38.1 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLocal
CrossesNorth English River
Location079113204
RouteCounty Highway 0
StateIowa
Coordinates41.60228, -92.16261
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
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 inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating14.4 US tons
Inventory rating6.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadUnknown
Structure length125 ft (38.1 m)
Longest span80 ft (24.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusPossibly eligible for the National Register; requires further investigation
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 North English River built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1965.

What condition is Local over North 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 March 2024.

How much traffic does Local over North English River carry?

About 20 vehicles per day (2022 count).

How long is Local over North English River?

The structure is 125 ft (38.1 m) long with a longest span of 80 ft (24.4 m) and a deck 16 ft wide.

Who owns Local over North English River?

It is owned by the County Highway Agency.