US Bridges

Kingston RD over Mineral Fk CR

Fair

Washington County, Missouri · S 5 T 38 N R 2 E · Structure no. 12618

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
53 ft
3 main spans
Daily traffic
45
2024 count
Owner
County
County Highway Agency

About this bridge

Kingston RD over Mineral Fk CR is a steel stringer/multi-beam or girder carrying Kingston RD over Mineral Fk CR in Washington County, Missouri. It was built in 1965, so it is 60 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 45 vehicles a day, roughly 10% of them trucks, projected to reach 54 by 2044. The structure is 53 ft (16.2 m) long and 17 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesKingston RD
CrossesMineral Fk CR
LocationS 5 T 38 N R 2 E
RouteCounty Highway 15
CountyWashington County
StateMissouri
Coordinates38.0444, -90.8449
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length53 ft (16.2 m)
Longest span17 ft (5.3 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2024)
Projected traffic54 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$283,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kingston RD over Mineral Fk CR built?

It was built in 1965, making it 60 years old in 2025.

What condition is Kingston RD over Mineral Fk 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 April 2024.

How much traffic does Kingston RD over Mineral Fk CR carry?

About 45 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Kingston RD over Mineral Fk CR?

The structure is 53 ft (16.2 m) long with a longest span of 17 ft (5.3 m) and a deck 17 ft wide.

Who owns Kingston RD over Mineral Fk CR?

It is owned by the County Highway Agency.