US Bridges

SW Hereford DR over Br of Long CR

Poor

Caldwell County, Missouri · S 29 T 55 N R 28 W · Structure no. 23841

Built
1950
75 years old, rebuilt 1982
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

SW Hereford DR over Br of Long CR is a steel stringer/multi-beam or girder carrying SW Hereford DR over Br of Long CR in Caldwell County, Missouri. It was built in 1950 and reconstructed in 1982, so it is 75 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 12 by 2044. The structure is 32 ft (9.8 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSW Hereford DR
CrossesBr of Long CR
LocationS 29 T 55 N R 28 W
RouteCounty Highway 436
Coordinates39.54007, -94.07131
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.6 US tons
Inventory rating21.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width18 ft (5.4 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic12 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$211,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SW Hereford DR over Br of Long CR built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1982.

What condition is SW Hereford DR over Br of Long CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does SW Hereford DR over Br of Long CR carry?

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

How long is SW Hereford DR over Br of Long CR?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 18 ft wide.

Who owns SW Hereford DR over Br of Long CR?

It is owned by the County Highway Agency.