US Bridges

Mo 7 S over Truman Reservoir

Fair

Benton County, Missouri · S 9 T 40 N R 23 W · Structure no. 2911

Built
1970
55 years old, rebuilt 2010
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,145 ft
13 main spans
Daily traffic
2,972
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 7 S over Truman Reservoir is a steel continuous stringer/multi-beam or girder carrying Mo 7 S over Truman Reservoir in Benton County, Missouri. It was built in 1970 and reconstructed in 2010, so it is 55 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 2,972 vehicles a day, roughly 10% of them trucks, projected to reach 5,201 by 2044. The structure is 2,145 ft (653.9 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesMo 7 S
CrossesTruman Reservoir
LocationS 9 T 40 N R 23 W
RouteState Highway 7
CountyBenton County
StateMissouri
Coordinates38.26076, -93.46685
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 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 rating57.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans13
Design loadH 20
Structure length2,145 ft (653.9 m)
Longest span170 ft (51.8 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,972 (2024)
Projected traffic5,201 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 7 S over Truman Reservoir built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2010.

What condition is Mo 7 S over Truman Reservoir 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 2023.

How much traffic does Mo 7 S over Truman Reservoir carry?

About 2,972 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mo 7 S over Truman Reservoir?

The structure is 2,145 ft (653.9 m) long with a longest span of 170 ft (51.8 m) and a deck 33 ft wide.

Who owns Mo 7 S over Truman Reservoir?

It is owned by the State Highway Agency.