US Bridges

Rt Aa E over Mormon Fk

Fair

Bates County, Missouri · S 20 T 42 N R 31 W · Structure no. 7254

Built
1962
63 years old, rebuilt 2018
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
164 ft
3 main spans
Daily traffic
727
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Aa E over Mormon Fk is a steel continuous stringer/multi-beam or girder carrying Rt Aa E over Mormon Fk in Bates County, Missouri. It was built in 1962 and reconstructed in 2018, so it is 63 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 727 vehicles a day, roughly 10% of them trucks, projected to reach 981 by 2044. The structure is 164 ft (50 m) long and 25 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

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CarriesRt Aa E
CrossesMormon Fk
LocationS 20 T 42 N R 31 W
RouteState Highway 0AA
CountyBates County
StateMissouri
Coordinates38.43502, -94.36517
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length164 ft (50 m)
Longest span60 ft (18.3 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic727 (2024)
Projected traffic981 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 Aa E over Mormon Fk built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2018.

What condition is Rt Aa E over Mormon Fk 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 October 2023.

How much traffic does Rt Aa E over Mormon Fk carry?

About 727 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Aa E over Mormon Fk?

The structure is 164 ft (50 m) long with a longest span of 60 ft (18.3 m) and a deck 25 ft wide.

Who owns Rt Aa E over Mormon Fk?

It is owned by the State Highway Agency.