US Bridges

No.Valley Dr. over Walnut Creek

Fair

Polk County, Iowa · 078251102 · Structure no. 000000000003831

Built
1985
40 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
243 ft
3 main spans
Daily traffic
288
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

No.Valley Dr. over Walnut Creek is a prestressed concrete stringer/multi-beam or girder carrying No.Valley Dr. over Walnut Creek in Polk County, Iowa. It was built in 1985, so it is 40 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 288 vehicles a day, projected to reach 288 by 2043. The structure is 243 ft (74.1 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNo.Valley Dr.
CrossesWalnut Creek
Location078251102
RouteCity Street 0
CountyPolk County
StateIowa
Coordinates41.57537, -93.6965
Functional classUrban Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length243 ft (74.1 m)
Longest span81 ft (24.7 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic288 (2022)
Projected traffic288 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$17,000
NavigationNo navigation control on waterway

Frequently asked questions

When was No.Valley Dr. over Walnut Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is No.Valley Dr. over Walnut 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 No.Valley Dr. over Walnut Creek carry?

About 288 vehicles per day (2022 count).

How long is No.Valley Dr. over Walnut Creek?

The structure is 243 ft (74.1 m) long with a longest span of 81 ft (24.7 m) and a deck 42 ft wide.

Who owns No.Valley Dr. over Walnut Creek?

It is owned by the City or Municipal Highway Agency.