US Bridges

Jay Jay RD over Silver Fork CR

FairPosted for load

Boone County, Missouri · S 29 T 51 N R 11 W · Structure no. 24493

Built
1955
70 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
113 ft
3 main spans
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

Jay Jay RD over Silver Fork CR is a steel stringer/multi-beam or girder carrying Jay Jay RD over Silver Fork CR in Boone County, Missouri. It was built in 1955, so it is 70 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. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 8% of them trucks, projected to reach 380 by 2043. The structure is 113 ft (34.4 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesJay Jay RD
CrossesSilver Fork CR
LocationS 29 T 51 N R 11 W
RouteCounty Highway 0
CountyBoone County
StateMissouri
Coordinates39.172, -92.16739
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length113 ft (34.4 m)
Longest span45 ft (13.7 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic380 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byOther Local 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 Jay Jay RD over Silver Fork CR built?

It was built in 1955, making it 70 years old in 2025.

What condition is Jay Jay RD over Silver Fork 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 December 2024.

How much traffic does Jay Jay RD over Silver Fork CR carry?

About 200 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Jay Jay RD over Silver Fork CR?

The structure is 113 ft (34.4 m) long with a longest span of 45 ft (13.7 m) and a deck 22 ft wide.

Who owns Jay Jay RD over Silver Fork CR?

It is owned by the County Highway Agency and maintained by the Other Local Agency.