US Bridges

S Delaware Ave over Willow Creek

Good

Cerro Gordo County, Iowa · 0.1 Mi. N. of Ia 122 · Structure no. 000000000008111

Built
2011
14 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
460
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Delaware Ave over Willow Creek is a prestressed concrete stringer/multi-beam or girder carrying S Delaware Ave over Willow Creek in Cerro Gordo County, Iowa. It was built in 2011, so it is 14 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 460 vehicles a day, roughly 5% of them trucks, projected to reach 460 by 2044. The structure is 88 ft (26.7 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS Delaware Ave
CrossesWillow Creek
Location0.1 Mi. N. of Ia 122
RouteCity Street 0
StateIowa
Coordinates43.148, -93.19971
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.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJanuary 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length88 ft (26.7 m)
Longest span85 ft (25.9 m)
Deck width44 ft (13.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic460 (2022)
Projected traffic460 by 2044
Trucks5%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S Delaware Ave over Willow Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is S Delaware Ave over Willow 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 January 2024.

How much traffic does S Delaware Ave over Willow Creek carry?

About 460 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is S Delaware Ave over Willow Creek?

The structure is 88 ft (26.7 m) long with a longest span of 85 ft (25.9 m) and a deck 44 ft wide.

Who owns S Delaware Ave over Willow Creek?

It is owned by the City or Municipal Highway Agency.