US Bridges

County RD 715 over Trib of Elk Br

Fair

Osage County, Missouri · S 18 T 41 N R 7 W · Structure no. 18735

Built
1960
65 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
28 ft
2 main spans
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 715 over Trib of Elk Br is a concrete slab carrying County RD 715 over Trib of Elk Br in Osage County, Missouri. It was built in 1960, so it is 65 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2043. The structure is 28 ft (8.5 m) long and 15 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesCounty RD 715
CrossesTrib of Elk Br
LocationS 18 T 41 N R 7 W
RouteCounty Highway 197
CountyOsage County
StateMissouri
Coordinates38.29658, -91.75211
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic35 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 County RD 715 over Trib of Elk Br built?

It was built in 1960, making it 65 years old in 2025.

What condition is County RD 715 over Trib of Elk Br 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 April 2023.

How much traffic does County RD 715 over Trib of Elk Br carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 715 over Trib of Elk Br?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m) and a deck 15 ft wide.

Who owns County RD 715 over Trib of Elk Br?

It is owned by the County Highway Agency.