US Bridges

G76 over Small Stream

Fair

Marion County, Iowa · 074202401 · Structure no. 000000000239161

Built
1996
29 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
400
2022 count
Owner
County
County Highway Agency

About this bridge

G76 over Small Stream is a concrete continuous culvert carrying G76 over Small Stream in Marion County, Iowa. It was built in 1996, so it is 29 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 400 vehicles a day, roughly 22% of them trucks, projected to reach 400 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesG76
CrossesSmall Stream
Location074202401
RouteCounty Highway 0
CountyMarion County
StateIowa
Coordinates41.2044, -93.1067
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
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 alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic400 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$60,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was G76 over Small Stream built?

It was built in 1996, making it 29 years old in 2025.

What condition is G76 over Small Stream 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 December 2023.

How much traffic does G76 over Small Stream carry?

About 400 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is G76 over Small Stream?

The structure is 31 ft (9.4 m) long with a longest span of 11 ft (3.4 m).

Who owns G76 over Small Stream?

It is owned by the County Highway Agency.