US Bridges

NW Main RD over Lost CR

Good

DeKalb County, Missouri · S 25 T 60 N R 32 W · Structure no. 14512

Built
1910
115 years old, rebuilt 2012
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
5
2024 count
Owner
County
County Highway Agency

About this bridge

NW Main RD over Lost CR is a steel stringer/multi-beam or girder carrying NW Main RD over Lost CR in DeKalb County, Missouri. It was built in 1910 and reconstructed in 2012, so it is 115 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 55 ft (16.7 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNW Main RD
CrossesLost CR
LocationS 25 T 60 N R 32 W
RouteCounty Highway 69
CountyDeKalb County
StateMissouri
Coordinates39.99125, -94.43752
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
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 rating91.3 US tons
Inventory rating54.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length55 ft (16.7 m)
Longest span54 ft (16.4 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2024)
Projected traffic6 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway 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 NW Main RD over Lost CR built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 2012.

What condition is NW Main RD over Lost CR 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 December 2024.

How much traffic does NW Main RD over Lost CR carry?

About 5 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is NW Main RD over Lost CR?

The structure is 55 ft (16.7 m) long with a longest span of 54 ft (16.4 m) and a deck 20 ft wide.

Who owns NW Main RD over Lost CR?

It is owned by the County Highway Agency.