US Bridges

Redtop RD over Buffalo CR

Fair

Dallas County, Missouri · S 28 T 33 N R 20 W · Structure no. 28294

Built
1928
97 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
500
2023 count
Owner
County
County Highway Agency

About this bridge

Redtop RD over Buffalo CR is a concrete continuous culvert carrying Redtop RD over Buffalo CR in Dallas County, Missouri. It was built in 1928, so it is 97 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 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 700 by 2043. The structure is 28 ft (8.5 m) long and 36 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesRedtop RD
CrossesBuffalo CR
LocationS 28 T 33 N R 20 W
RouteCounty Highway 409
CountyDallas County
StateMissouri
Coordinates37.54785, -93.14286
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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating67.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic700 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Redtop RD over Buffalo CR built?

It was built in 1928, making it 97 years old in 2025.

What condition is Redtop RD over Buffalo CR 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 Redtop RD over Buffalo CR carry?

About 500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Redtop RD over Buffalo CR?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m) and a deck 36 ft wide.

Who owns Redtop RD over Buffalo CR?

It is owned by the County Highway Agency.