US Bridges

250th Ave over Clear Creek

Good

Clinton County, Iowa · 081E31504 · Structure no. 000000000122081

Built
2022
3 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
67 ft
1 main span
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

250th Ave over Clear Creek is a steel stringer/multi-beam or girder carrying 250th Ave over Clear Creek in Clinton 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 35 vehicles a day, roughly 23% of them trucks, projected to reach 35 by 2044. The structure is 67 ft (20.4 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries250th Ave
CrossesClear Creek
Location081E31504
RouteCounty Highway 0
StateIowa
Coordinates41.82138, -90.60707
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating61.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length67 ft (20.4 m)
Longest span63 ft (19.2 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2044
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 250th Ave over Clear Creek built?

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

What condition is 250th Ave over Clear 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 250th Ave over Clear Creek carry?

About 35 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is 250th Ave over Clear Creek?

The structure is 67 ft (20.4 m) long with a longest span of 63 ft (19.2 m) and a deck 31 ft wide.

Who owns 250th Ave over Clear Creek?

It is owned by the County Highway Agency.