US Bridges

Kentucky RD over Unnamed CR

Fair

Sullivan County, Missouri · S 18 T 64 N R 19 W · Structure no. 13874

Built
1930
95 years old, rebuilt 1991
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Kentucky RD over Unnamed CR is a steel stringer/multi-beam or girder carrying Kentucky RD over Unnamed CR in Sullivan County, Missouri. It was built in 1930 and reconstructed in 1991, so it is 95 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 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKentucky RD
CrossesUnnamed CR
LocationS 18 T 64 N R 19 W
RouteCounty Highway 50
CountySullivan County
StateMissouri
Coordinates40.34252, -93.06547
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 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 Kentucky RD over Unnamed CR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1991.

What condition is Kentucky RD over Unnamed 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 January 2024.

How much traffic does Kentucky RD over Unnamed CR carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Kentucky RD over Unnamed CR?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 16 ft wide.

Who owns Kentucky RD over Unnamed CR?

It is owned by the County Highway Agency.