US Bridges

Black Horse RD over E Fk Niangua Rvr

Fair

Webster County, Missouri · S 33 T 32 N R 18 W · Structure no. 15191

Built
1900
125 years old, rebuilt 1987
Condition
Fair
inspected April 2023
Type
Slab
Concrete Continuous
Length
49 ft
3 main spans
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

Black Horse RD over E Fk Niangua Rvr is a concrete continuous slab carrying Black Horse RD over E Fk Niangua Rvr in Webster County, Missouri. It was built in 1900 and reconstructed in 1987, so it is 125 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 66 by 2043. The structure is 49 ft (14.9 m) long and 18 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesBlack Horse RD
CrossesE Fk Niangua Rvr
LocationS 33 T 32 N R 18 W
RouteCounty Highway 88
CountyWebster County
StateMissouri
Coordinates37.44562, -92.91817
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
Deck7 GoodSome minor problems.
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 within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length49 ft (14.9 m)
Longest span14 ft (4.3 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic66 by 2043
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 Black Horse RD over E Fk Niangua Rvr built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1987.

What condition is Black Horse RD over E Fk Niangua Rvr 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 Black Horse RD over E Fk Niangua Rvr carry?

About 40 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Black Horse RD over E Fk Niangua Rvr?

The structure is 49 ft (14.9 m) long with a longest span of 14 ft (4.3 m) and a deck 18 ft wide.

Who owns Black Horse RD over E Fk Niangua Rvr?

It is owned by the County Highway Agency.