US Bridges

Mo 39 S over Dry Br

Fair

Cedar County, Missouri · S 14 T 33 N R 27 W · Structure no. 5140

Built
1928
97 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
1,296
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 39 S over Dry Br is a concrete continuous culvert carrying Mo 39 S over Dry Br in Cedar County, Missouri. It was built in 1928, so it is 97 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 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 1,296 vehicles a day, roughly 7% of them trucks, projected to reach 1,944 by 2044. The structure is 21 ft (6.4 m) long and 34 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesMo 39 S
CrossesDry Br
LocationS 14 T 33 N R 27 W
RouteState Highway 39
CountyCedar County
StateMissouri
Coordinates37.59874, -93.85705
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.6 US tons
Inventory rating33.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,296 (2024)
Projected traffic1,944 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mo 39 S over Dry Br built?

It was built in 1928, making it 97 years old in 2025.

What condition is Mo 39 S over Dry Br 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 January 2024.

How much traffic does Mo 39 S over Dry Br carry?

About 1,296 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Mo 39 S over Dry Br?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns Mo 39 S over Dry Br?

It is owned by the State Highway Agency.