US Bridges

60th Ave over Creek

Good

Scott County, Iowa · 078E20704 · Structure no. 000000000302171

Built
2022
3 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

60th Ave over Creek is a concrete continuous culvert carrying 60th Ave over Creek in Scott County, Iowa. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, projected to reach 100 by 2043. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries60th Ave
CrossesCreek
Location078E20704
RouteCounty Highway 0
StateIowa
Coordinates41.57483, -90.784
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span17 ft (5.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic100 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 60th Ave over Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is 60th Ave over 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 March 2023.

How much traffic does 60th Ave over Creek carry?

About 100 vehicles per day (2022 count).

How long is 60th Ave over Creek?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.3 m).

Who owns 60th Ave over Creek?

It is owned by the County Highway Agency.