US Bridges

Green Ridge RD over Clear Creek

Fair

Linn County, Iowa · 082053606 · Structure no. 000000000220141

Built
1992
33 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
33 ft
6 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

Green Ridge RD over Clear Creek is a steel culvert carrying Green Ridge RD over Clear Creek in Linn County, Iowa. It was built in 1992, so it is 33 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 59 vehicles a day, projected to reach 59 by 2044. The structure is 33 ft (10.1 m) long.

CarriesGreen Ridge RD
CrossesClear Creek
Location082053606
RouteCounty Highway 0
StateIowa
Coordinates41.86521, -91.37105
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans6
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span3 ft (0.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Green Ridge RD over Clear Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Green Ridge RD over Clear Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Green Ridge RD over Clear Creek carry?

About 59 vehicles per day (2022 count).

How long is Green Ridge RD over Clear Creek?

The structure is 33 ft (10.1 m) long with a longest span of 3 ft (0.9 m).

Who owns Green Ridge RD over Clear Creek?

It is owned by the County Highway Agency.