US Bridges

FM Douglas over Little Wapsipinican Rvr

Fair

Howard County, Iowa · 099143406 · Structure no. 000000000183450

Built
1950
75 years old, rebuilt 2016
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
88
2022 count
Owner
County
County Highway Agency

About this bridge

FM Douglas over Little Wapsipinican Rvr is a steel stringer/multi-beam or girder carrying FM Douglas over Little Wapsipinican Rvr in Howard County, Iowa. It was built in 1950 and reconstructed in 2016, so it is 75 years old, older 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 88 vehicles a day, projected to reach 88 by 2044. The structure is 44 ft (13.4 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM Douglas
CrossesLittle Wapsipinican Rvr
Location099143406
RouteCounty Highway 0
CountyHoward County
StateIowa
Coordinates43.34577, -92.48553
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2022)
Projected traffic88 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 FM Douglas over Little Wapsipinican Rvr built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2016.

What condition is FM Douglas over Little Wapsipinican Rvr 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 April 2024.

How much traffic does FM Douglas over Little Wapsipinican Rvr carry?

About 88 vehicles per day (2022 count).

How long is FM Douglas over Little Wapsipinican Rvr?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 22 ft wide.

Who owns FM Douglas over Little Wapsipinican Rvr?

It is owned by the County Highway Agency.