US Bridges

Sth 29 over S Br Gilbert Creek

Fair

Dunn County, Wisconsin · 1.8M E JCT Cth Pp · Structure no. B17007700000000

Built
1969
56 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
1,800
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 29 over S Br Gilbert Creek is a concrete continuous culvert carrying Sth 29 over S Br Gilbert Creek in Dunn County, Wisconsin. It was built in 1969, so it is 56 years old, older than the Wisconsin average of 40.3 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 1,800 vehicles a day, roughly 10% of them trucks, projected to reach 2,160 by 2043. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 37.9 mi (61 km).

CarriesSth 29
CrossesS Br Gilbert Creek
Location1.8M E JCT Cth Pp
RouteState Highway 29
Coordinates44.87482, -92.10177
Functional classRural Minor Arterial

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length28 ft (8.4 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 traffic1,800 (2023)
Projected traffic2,160 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 29 over S Br Gilbert Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Sth 29 over S Br Gilbert 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 August 2024.

How much traffic does Sth 29 over S Br Gilbert Creek carry?

About 1,800 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sth 29 over S Br Gilbert Creek?

The structure is 28 ft (8.4 m) long with a longest span of 10 ft (3 m).

Who owns Sth 29 over S Br Gilbert Creek?

It is owned by the State Highway Agency.