US Bridges

Lamar RD over Jordan Branch

Good

Platte County, Missouri · S 22 T 54 N R 35 W · Structure no. 36450

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
110
2024 count
Owner
County
County Highway Agency

About this bridge

Lamar RD over Jordan Branch is a prestressed concrete tee beam carrying Lamar RD over Jordan Branch in Platte County, Missouri. It was built in 2020, so it is 5 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 110 vehicles a day, roughly 10% of them trucks, projected to reach 204 by 2044. The structure is 84 ft (25.6 m) long and 25 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesLamar RD
CrossesJordan Branch
LocationS 22 T 54 N R 35 W
RouteCounty Highway 51
Coordinates39.48056, -94.81778
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span80 ft (24.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2024)
Projected traffic204 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lamar RD over Jordan Branch built?

It was built in 2020, making it 5 years old in 2025.

What condition is Lamar RD over Jordan Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Lamar RD over Jordan Branch carry?

About 110 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Lamar RD over Jordan Branch?

The structure is 84 ft (25.6 m) long with a longest span of 80 ft (24.5 m) and a deck 25 ft wide.

Who owns Lamar RD over Jordan Branch?

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