US Bridges

Bunker RD over Br Little Gravois

Fair

Miller County, Missouri · S 30 T 41 N R 15 W · Structure no. 16777

Built
1940
85 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

Bunker RD over Br Little Gravois is a concrete culvert carrying Bunker RD over Br Little Gravois in Miller County, Missouri. It was built in 1940, so it is 85 years old, older 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 5 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 102 by 2043. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesBunker RD
CrossesBr Little Gravois
LocationS 30 T 41 N R 15 W
RouteCounty Highway 132
CountyMiller County
StateMissouri
Coordinates38.29094, -92.63494
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic102 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Bunker RD over Br Little Gravois built?

It was built in 1940, making it 85 years old in 2025.

What condition is Bunker RD over Br Little Gravois 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 January 2025.

How much traffic does Bunker RD over Br Little Gravois carry?

About 60 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Bunker RD over Br Little Gravois?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m).

Who owns Bunker RD over Br Little Gravois?

It is owned by the County Highway Agency.