US Bridges

57th Ave over Wapsipinicon River

Fair

Scott County, Iowa · 080E20602 · Structure no. 000000000303191

Built
1982
43 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
360 ft
4 main spans
Daily traffic
70
2022 count
Owner
County
County Highway Agency

About this bridge

57th Ave over Wapsipinicon River is a steel continuous stringer/multi-beam or girder carrying 57th Ave over Wapsipinicon River in Scott County, Iowa. It was built in 1982, so it is 43 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 70 vehicles a day, projected to reach 70 by 2043. The structure is 360 ft (109.7 m) long and 30 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
Carries57th Ave
CrossesWapsipinicon River
Location080E20602
RouteCounty Highway 0
CountyScott County
StateIowa
Coordinates41.7677, -90.78218
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.4 US tons
Inventory rating30.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length360 ft (109.7 m)
Longest span98 ft (29.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic70 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 57th Ave over Wapsipinicon River built?

It was built in 1982, making it 43 years old in 2025.

What condition is 57th Ave over Wapsipinicon River 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 April 2023.

How much traffic does 57th Ave over Wapsipinicon River carry?

About 70 vehicles per day (2022 count).

How long is 57th Ave over Wapsipinicon River?

The structure is 360 ft (109.7 m) long with a longest span of 98 ft (29.9 m) and a deck 30 ft wide.

Who owns 57th Ave over Wapsipinicon River?

It is owned by the County Highway Agency.