US Bridges

Mo 6 E over Dry Br

Fair

Sullivan County, Missouri · S 34 T 62 N R 21 W · Structure no. 5481

Built
1932
93 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
939
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Dry Br is a concrete continuous culvert carrying Mo 6 E over Dry Br in Sullivan County, Missouri. It was built in 1932, so it is 93 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 939 vehicles a day, roughly 21% of them trucks, projected to reach 1,643 by 2044. The structure is 34 ft (10.4 m) long and 34 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesMo 6 E
CrossesDry Br
LocationS 34 T 62 N R 21 W
RouteState Highway 6
CountySullivan County
StateMissouri
Coordinates40.13132, -93.25499
Functional classRural Principal Arterial - Other

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length34 ft (10.4 m)
Longest span12 ft (3.7 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic939 (2024)
Projected traffic1,643 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemYes

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 6 E over Dry Br built?

It was built in 1932, making it 93 years old in 2025.

What condition is Mo 6 E 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 August 2023.

How much traffic does Mo 6 E over Dry Br carry?

About 939 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is Mo 6 E over Dry Br?

The structure is 34 ft (10.4 m) long with a longest span of 12 ft (3.7 m) and a deck 34 ft wide.

Who owns Mo 6 E over Dry Br?

It is owned by the State Highway Agency.