US Bridges

County RD 6070 over Mustion CR

FairPosted for load

Howell County, Missouri · S 31 T 24 N R 8 W · Structure no. 25111

Built
1925
100 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
61 ft
3 main spans
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 6070 over Mustion CR is a concrete slab carrying County RD 6070 over Mustion CR in Howell County, Missouri. It was built in 1925, so it is 100 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. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 10% of them trucks, projected to reach 195 by 2043. The structure is 61 ft (18.6 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty RD 6070
CrossesMustion CR
LocationS 31 T 24 N R 8 W
RouteCounty Highway 628
CountyHowell County
StateMissouri
Coordinates36.7055, -91.8872
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.8 US tons
Inventory rating10.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length61 ft (18.6 m)
Longest span20 ft (6.1 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic195 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$472,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 6070 over Mustion CR built?

It was built in 1925, making it 100 years old in 2025.

What condition is County RD 6070 over Mustion 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 November 2024.

How much traffic does County RD 6070 over Mustion CR carry?

About 150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 6070 over Mustion CR?

The structure is 61 ft (18.6 m) long with a longest span of 20 ft (6.1 m) and a deck 23 ft wide.

Who owns County RD 6070 over Mustion CR?

It is owned by the County Highway Agency.