US Bridges

Jemerson Creek RD over Jamerson CR

Fair

Boone County, Missouri · S 31 T 46 N R 12 W · Structure no. 23365

Built
1982
43 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

Jemerson Creek RD over Jamerson CR is a prestressed concrete tee beam carrying Jemerson Creek RD over Jamerson CR in Boone County, Missouri. It was built in 1982, so it is 43 years old, younger 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 5 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2043. The structure is 36 ft (11 m) long and 23 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesJemerson Creek RD
CrossesJamerson CR
LocationS 31 T 46 N R 12 W
RouteCounty Highway 406
CountyBoone County
StateMissouri
Coordinates38.73914, -92.31325
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.5 US tons
Inventory rating33.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic38 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Jemerson Creek RD over Jamerson CR built?

It was built in 1982, making it 43 years old in 2025.

What condition is Jemerson Creek RD over Jamerson 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 Jemerson Creek RD over Jamerson CR carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Jemerson Creek RD over Jamerson CR?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 23 ft wide.

Who owns Jemerson Creek RD over Jamerson CR?

It is owned by the County Highway Agency.