US Bridges

CO RD G8L over Mosquito Creek

Fair

Pottawattamie County, Iowa · 077411808 · Structure no. 000000000044181

Built
1994
31 years old
Condition
Fair
inspected May 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
407 ft
3 main spans
Daily traffic
1,335
2021 count
Owner
County
County Highway Agency

About this bridge

CO RD G8L over Mosquito Creek is a steel continuous girder and floorbeam system carrying CO RD G8L over Mosquito Creek in Pottawattamie County, Iowa. It was built in 1994, so it is 31 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 1,335 vehicles a day, roughly 31% of them trucks, projected to reach 1,335 by 2043. The structure is 407 ft (124.1 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCO RD G8L
CrossesMosquito Creek
Location077411808
RouteCounty Highway 0
CountyPottawattamie County
StateIowa
Coordinates41.46649, -95.60385
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length407 ft (124.1 m)
Longest span156 ft (47.5 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,335 (2021)
Projected traffic1,335 by 2043
Trucks31%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD G8L over Mosquito Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is CO RD G8L 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 May 2023.

How much traffic does CO RD G8L over Mosquito Creek carry?

About 1,335 vehicles per day (2021 count), of which roughly 31% are trucks.

How long is CO RD G8L over Mosquito Creek?

The structure is 407 ft (124.1 m) long with a longest span of 156 ft (47.5 m) and a deck 39 ft wide.

Who owns CO RD G8L over Mosquito Creek?

It is owned by the County Highway Agency.