US Bridges

Aurora Ave over Walnut Creek

Good

Dallas County, Iowa · Aurora Ave · Structure no. 000000000505045

Built
2012
13 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
276 ft
3 main spans
Daily traffic
356
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Aurora Ave over Walnut Creek is a prestressed concrete stringer/multi-beam or girder carrying Aurora Ave over Walnut Creek in Dallas County, Iowa. It was built in 2012, so it is 13 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 356 vehicles a day, projected to reach 356 by 2044. The structure is 276 ft (84.1 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesAurora Ave
CrossesWalnut Creek
LocationAurora Ave
RouteCity Street 0
CountyDallas County
StateIowa
Coordinates41.63973, -93.82542
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length276 ft (84.1 m)
Longest span92 ft (27.9 m)
Deck width50 ft (15.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic356 (2022)
Projected traffic356 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Aurora Ave over Walnut Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Aurora Ave over Walnut Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Aurora Ave over Walnut Creek carry?

About 356 vehicles per day (2022 count).

How long is Aurora Ave over Walnut Creek?

The structure is 276 ft (84.1 m) long with a longest span of 92 ft (27.9 m) and a deck 50 ft wide.

Who owns Aurora Ave over Walnut Creek?

It is owned by the City or Municipal Highway Agency.