US Bridges

235th Street over Cherry Creek

Good

Clinton County, Iowa · 081E41203 · Structure no. 000000000122431

Built
2007
18 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
82
2022 count
Owner
County
County Highway Agency

About this bridge

235th Street over Cherry Creek is a prestressed concrete tee beam carrying 235th Street over Cherry Creek in Clinton County, Iowa. It was built in 2007, so it is 18 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 82 vehicles a day, projected to reach 82 by 2044. The structure is 66 ft (20.1 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries235th Street
CrossesCherry Creek
Location081E41203
RouteCounty Highway 0
StateIowa
Coordinates41.83803, -90.43347
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
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 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating63.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82 (2022)
Projected traffic82 by 2044
Trucks0%
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 235th Street over Cherry Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is 235th Street over Cherry 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 235th Street over Cherry Creek carry?

About 82 vehicles per day (2022 count).

How long is 235th Street over Cherry Creek?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 31 ft wide.

Who owns 235th Street over Cherry Creek?

It is owned by the County Highway Agency.