US Bridges

Ia 44 over Mosquito Creek

Fair

Shelby County, Iowa · 0.3 Mi. E of Jct. Ia 191 · Structure no. 000000000047950

Built
1959
66 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
215 ft
3 main spans
Daily traffic
1,110
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 44 over Mosquito Creek is a steel continuous stringer/multi-beam or girder carrying Ia 44 over Mosquito Creek in Shelby County, Iowa. It was built in 1959, so it is 66 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 5 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 1,110 vehicles a day, roughly 13% of them trucks, projected to reach 1,110 by 2043. The structure is 215 ft (65.5 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesIa 44
CrossesMosquito Creek
Location0.3 Mi. E of Jct. Ia 191
RouteState Highway 44
CountyShelby County
StateIowa
Coordinates41.64682, -95.51509
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.5 US tons
Inventory rating27.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length215 ft (65.5 m)
Longest span82 ft (25 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,110 (2022)
Projected traffic1,110 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 1959, making it 66 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 January 2023.

How much traffic does Ia 44 over Mosquito Creek carry?

About 1,110 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Ia 44 over Mosquito Creek?

The structure is 215 ft (65.5 m) long with a longest span of 82 ft (25 m) and a deck 36 ft wide.

Who owns Ia 44 over Mosquito Creek?

It is owned by the State Highway Agency.