US Bridges

Ia 44 over Mosquito Creek

Fair

Dallas County, Iowa · 0.4 Mile East of SR P30 · Structure no. 000000000021941

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
3,080
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 44 over Mosquito Creek is a concrete continuous slab carrying Ia 44 over Mosquito Creek in Dallas 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 3,080 vehicles a day, roughly 10% of them trucks, projected to reach 3,080 by 2043. The structure is 133 ft (40.5 m) long and 43 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesIa 44
CrossesMosquito Creek
Location0.4 Mile East of SR P30
RouteState Highway 44
CountyDallas County
StateIowa
Coordinates41.68837, -94.26115
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.2 US tons
Inventory rating33.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span51 ft (15.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,080 (2022)
Projected traffic3,080 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Mosquito Creek built?

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

What condition is Ia 44 over 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 July 2023.

How much traffic does Ia 44 over Mosquito Creek carry?

About 3,080 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ia 44 over Mosquito Creek?

The structure is 133 ft (40.5 m) long with a longest span of 51 ft (15.5 m) and a deck 43 ft wide.

Who owns Ia 44 over Mosquito Creek?

It is owned by the State Highway Agency.