US Bridges

130th Ave over Small Stream

Good

Clinton County, Iowa · 082E12806 · Structure no. 000000000123001

Built
1987
38 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
460
2022 count
Owner
County
County Highway Agency

About this bridge

130th Ave over Small Stream is a concrete culvert carrying 130th Ave over Small Stream in Clinton County, Iowa. It was built in 1987, so it is 38 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 460 vehicles a day, roughly 13% of them trucks, projected to reach 460 by 2044. The structure is 44 ft (13.4 m) long.

Carries130th Ave
CrossesSmall Stream
Location082E12806
RouteCounty Highway 0
StateIowa
Coordinates41.87799, -90.84007
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 inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.4 US tons
Inventory rating36.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic460 (2022)
Projected traffic460 by 2044
Trucks13%
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 130th Ave over Small Stream built?

It was built in 1987, making it 38 years old in 2025.

What condition is 130th Ave over Small Stream 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 2024.

How much traffic does 130th Ave over Small Stream carry?

About 460 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is 130th Ave over Small Stream?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).

Who owns 130th Ave over Small Stream?

It is owned by the County Highway Agency.