US Bridges

Mo 13 S over Long CR

Fair

Caldwell County, Missouri · S 34 T 56 N R 28 W · Structure no. 4841

Built
1925
100 years old, rebuilt 1940
Condition
Fair
inspected November 2024
Type
Arch - Deck
Concrete
Length
65 ft
1 main span
Daily traffic
3,776
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 13 S over Long CR is a concrete arch - deck carrying Mo 13 S over Long CR in Caldwell County, Missouri. It was built in 1925 and reconstructed in 1940, so it is 100 years old, older 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 3,776 vehicles a day, roughly 22% of them trucks, projected to reach 5,098 by 2044. The structure is 65 ft (19.8 m) long and 31 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesMo 13 S
CrossesLong CR
LocationS 34 T 56 N R 28 W
RouteState Highway 13
CountyCaldwell County
StateMissouri
Coordinates39.61262, -94.03852
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionNovember 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating89.3 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length65 ft (19.8 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,776 (2024)
Projected traffic5,098 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$581,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 13 S over Long CR built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1940.

What condition is Mo 13 S over Long 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 November 2024.

How much traffic does Mo 13 S over Long CR carry?

About 3,776 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Mo 13 S over Long CR?

The structure is 65 ft (19.8 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns Mo 13 S over Long CR?

It is owned by the State Highway Agency.