US Bridges

Block Branch RD over Trib of Bourbeuse

Fair

Gasconade County, Missouri · S 18 T 41 N R 4 W · Structure no. 29469

Built
1990
35 years old, rebuilt 1996
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

Block Branch RD over Trib of Bourbeuse is a concrete culvert carrying Block Branch RD over Trib of Bourbeuse in Gasconade County, Missouri. It was built in 1990 and reconstructed in 1996, so it is 35 years old, younger than the Missouri average of 45.1 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 24 by 2044. The structure is 22 ft (6.7 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesBlock Branch RD
CrossesTrib of Bourbeuse
LocationS 18 T 41 N R 4 W
RouteCounty Highway 153
CountyGasconade County
StateMissouri
Coordinates38.29503, -91.41311
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating18.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic24 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Block Branch RD over Trib of Bourbeuse built?

It was built in 1990, making it 35 years old in 2025. It was reconstructed in 1996.

What condition is Block Branch RD over Trib of Bourbeuse 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 March 2024.

How much traffic does Block Branch RD over Trib of Bourbeuse carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Block Branch RD over Trib of Bourbeuse?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 31 ft wide.

Who owns Block Branch RD over Trib of Bourbeuse?

It is owned by the County Highway Agency.