US Bridges

FM over Dd #5

Good

Webster County, Iowa · 087301302 · Structure no. 000000000342172

Built
1995
30 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,277
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Dd #5 is a concrete continuous culvert carrying FM over Dd #5 in Webster County, Iowa. It was built in 1995, so it is 30 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 1,277 vehicles a day, projected to reach 1,277 by 2041. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesDd #5
Location087301302
RouteCounty Highway 0
StateIowa
Coordinates42.34239, -94.30076
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,277 (2022)
Projected traffic1,277 by 2041
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Dd #5 built?

It was built in 1995, making it 30 years old in 2025.

What condition is FM over Dd #5 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 November 2021.

How much traffic does FM over Dd #5 carry?

About 1,277 vehicles per day (2022 count).

How long is FM over Dd #5?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns FM over Dd #5?

It is owned by the County Highway Agency.