US Bridges

Ia 44 over Branch Mosquito Creek

Fair

Guthrie County, Iowa · 3.6 Mi. E of Jct. Ia 4 · Structure no. 000000000604100

Built
1981
44 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
3,460
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 44 over Branch Mosquito Creek is a concrete continuous culvert carrying Ia 44 over Branch Mosquito Creek in Guthrie County, Iowa. It was built in 1981, so it is 44 years old, younger 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 3,460 vehicles a day, roughly 9% of them trucks, projected to reach 3,460 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesIa 44
CrossesBranch Mosquito Creek
Location3.6 Mi. E of Jct. Ia 4
RouteState Highway 44
CountyGuthrie County
StateIowa
Coordinates41.68829, -94.29087
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating19.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 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 traffic3,460 (2022)
Projected traffic3,460 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 44 over Branch Mosquito Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Ia 44 over Branch Mosquito Creek 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 November 2024.

How much traffic does Ia 44 over Branch Mosquito Creek carry?

About 3,460 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Ia 44 over Branch Mosquito Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Ia 44 over Branch Mosquito Creek?

It is owned by the State Highway Agency.