US Bridges

Mcpherson Ave over Mosquito Creek

Fair

Pottawattamie County, Iowa · 000000000 · Structure no. 000000000504210

Built
1993
32 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
304 ft
3 main spans
Daily traffic
3,786
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mcpherson Ave over Mosquito Creek is a prestressed concrete stringer/multi-beam or girder carrying Mcpherson Ave over Mosquito Creek in Pottawattamie County, Iowa. It was built in 1993, so it is 32 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 3,786 vehicles a day, projected to reach 3,786 by 2043. The structure is 304 ft (92.7 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesMcpherson Ave
CrossesMosquito Creek
Location000000000
RouteCity Street 0
CountyPottawattamie County
StateIowa
Coordinates41.26032, -95.80753
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating35.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length304 ft (92.7 m)
Longest span112 ft (34.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,786 (2022)
Projected traffic3,786 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Mcpherson Ave over Mosquito Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Mcpherson Ave 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 Mcpherson Ave over Mosquito Creek carry?

About 3,786 vehicles per day (2022 count).

How long is Mcpherson Ave over Mosquito Creek?

The structure is 304 ft (92.7 m) long with a longest span of 112 ft (34.1 m) and a deck 35 ft wide.

Who owns Mcpherson Ave over Mosquito Creek?

It is owned by the City or Municipal Highway Agency.