US Bridges

NW Pleasant RD over Br Third Fk Platte

Fair

DeKalb County, Missouri · S 15 T 60 N R 33 W · Structure no. 12529

Built
1987
38 years old, rebuilt 1996
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

NW Pleasant RD over Br Third Fk Platte is a steel stringer/multi-beam or girder carrying NW Pleasant RD over Br Third Fk Platte in DeKalb County, Missouri. It was built in 1987 and reconstructed in 1996, so it is 38 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 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 29 by 2044. The structure is 40 ft (12.2 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNW Pleasant RD
CrossesBr Third Fk Platte
LocationS 15 T 60 N R 33 W
RouteCounty Highway 13
Coordinates40.00986, -94.58848
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.
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 inspectionDecember 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 rating69.4 US tons
Inventory rating41.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic29 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 NW Pleasant RD over Br Third Fk Platte built?

It was built in 1987, making it 38 years old in 2025. It was reconstructed in 1996.

What condition is NW Pleasant RD over Br Third Fk Platte 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 NW Pleasant RD over Br Third Fk Platte carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is NW Pleasant RD over Br Third Fk Platte?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 18 ft wide.

Who owns NW Pleasant RD over Br Third Fk Platte?

It is owned by the County Highway Agency.