US Bridges

180 ST over Drainage Ditch

Good

Clinton County, Iowa · 082E11601 · Structure no. 000000000122931

Built
2000
25 years old
Condition
Good
inspected February 2021
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
350
2022 count
Owner
County
County Highway Agency

About this bridge

180 ST over Drainage Ditch is a concrete culvert carrying 180 ST over Drainage Ditch in Clinton County, Iowa. It was built in 2000, so it is 25 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 350 vehicles a day, roughly 20% of them trucks, projected to reach 350 by 2043. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries180 ST
CrossesDrainage Ditch
Location082E11601
RouteCounty Highway 0
CountyClinton County
StateIowa
Coordinates41.91682, -90.85504
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating37.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic350 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 180 ST over Drainage Ditch built?

It was built in 2000, making it 25 years old in 2025.

What condition is 180 ST over Drainage Ditch 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 February 2021.

How much traffic does 180 ST over Drainage Ditch carry?

About 350 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is 180 ST over Drainage Ditch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns 180 ST over Drainage Ditch?

It is owned by the County Highway Agency.