US Bridges

Rt Am E over Orr Br

Fair

Douglas County, Missouri · S 12 T 27 N R 11 W · Structure no. 8112

Built
1961
64 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete Continuous
Length
22 ft
3 main spans
Daily traffic
138
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Am E over Orr Br is a concrete continuous culvert carrying Rt Am E over Orr Br in Douglas County, Missouri. It was built in 1961, so it is 64 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 138 vehicles a day, roughly 38% of them trucks, projected to reach 214 by 2044. The structure is 22 ft (6.8 m) long and 31 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesRt Am E
CrossesOrr Br
LocationS 12 T 27 N R 11 W
RouteState Highway 0AM
CountyDouglas County
StateMissouri
Coordinates37.04151, -92.09911
Functional classRural Minor Collector

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating89.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length22 ft (6.8 m)
Longest span6 ft (1.8 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic138 (2024)
Projected traffic214 by 2044
Trucks38%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 Rt Am E over Orr Br built?

It was built in 1961, making it 64 years old in 2025.

What condition is Rt Am E over Orr 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 February 2025.

How much traffic does Rt Am E over Orr Br carry?

About 138 vehicles per day (2024 count), of which roughly 38% are trucks.

How long is Rt Am E over Orr Br?

The structure is 22 ft (6.8 m) long with a longest span of 6 ft (1.8 m) and a deck 31 ft wide.

Who owns Rt Am E over Orr Br?

It is owned by the State Highway Agency.