US Bridges

FM over English River

Good

Washington County, Iowa · 077061704 · Structure no. 000000000337401

Built
1999
26 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
426 ft
5 main spans
Daily traffic
1,460
2022 count
Owner
County
County Highway Agency

About this bridge

FM over English River is a prestressed concrete stringer/multi-beam or girder carrying FM over English River in Washington County, Iowa. It was built in 1999, so it is 26 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,460 vehicles a day, roughly 11% of them trucks, projected to reach 1,460 by 2043. The structure is 426 ft (129.8 m) long and 33 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesFM
CrossesEnglish River
Location077061704
RouteCounty Highway 0
StateIowa
Coordinates41.47501, -91.58032
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.5 US tons
Inventory rating45.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length426 ft (129.8 m)
Longest span112 ft (34.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,460 (2022)
Projected traffic1,460 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 FM over English River built?

It was built in 1999, making it 26 years old in 2025.

What condition is FM over English River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does FM over English River carry?

About 1,460 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is FM over English River?

The structure is 426 ft (129.8 m) long with a longest span of 112 ft (34.1 m) and a deck 33 ft wide.

Who owns FM over English River?

It is owned by the County Highway Agency.