US Bridges

Loc 108th ST over Small Stream

Good

Buchanan County, Iowa · 090090207 · Structure no. 000000000083801

Built
1987
38 years old
Condition
Good
inspected December 2023
Type
Culvert
Steel
Length
31 ft
2 main spans
Daily traffic
29
2022 count
Owner
County
County Highway Agency

About this bridge

Loc 108th ST over Small Stream is a steel culvert carrying Loc 108th ST over Small Stream in Buchanan 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 29 vehicles a day, projected to reach 29 by 2043. The structure is 31 ft (9.4 m) long.

Location

Open in Google Maps
CarriesLoc 108th ST
CrossesSmall Stream
Location090090207
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.63273, -91.86532
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2022)
Projected traffic29 by 2043
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 Loc 108th ST over Small Stream built?

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

What condition is Loc 108th ST 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 December 2023.

How much traffic does Loc 108th ST over Small Stream carry?

About 29 vehicles per day (2022 count).

How long is Loc 108th ST over Small Stream?

The structure is 31 ft (9.4 m) long with a longest span of 12 ft (3.7 m).

Who owns Loc 108th ST over Small Stream?

It is owned by the County Highway Agency.