US Bridges

Mo 13 S over Truman Reservoir

Fair

Henry County, Missouri · S 25 T 41 N R 26 W · Structure no. 326

Built
1964
61 years old, rebuilt 2014
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,035 ft
9 main spans
Daily traffic
7,835
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 13 S over Truman Reservoir is a steel continuous stringer/multi-beam or girder carrying Mo 13 S over Truman Reservoir in Henry County, Missouri. It was built in 1964 and reconstructed in 2014, so it is 61 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 7,835 vehicles a day, roughly 22% of them trucks, projected to reach 13,711 by 2044. The structure is 1,035 ft (315.5 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMo 13 S
CrossesTruman Reservoir
LocationS 25 T 41 N R 26 W
RouteState Highway 13
CountyHenry County
StateMissouri
Coordinates38.32035, -93.75809
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
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 alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadH 20
Structure length1,035 ft (315.5 m)
Longest span133 ft (40.5 m)
Deck width34 ft (10.5 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,835 (2024)
Projected traffic13,711 by 2044
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 13 S over Truman Reservoir built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2014.

What condition is Mo 13 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 January 2023.

How much traffic does Mo 13 S over Truman Reservoir carry?

About 7,835 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Mo 13 S over Truman Reservoir?

The structure is 1,035 ft (315.5 m) long with a longest span of 133 ft (40.5 m) and a deck 34 ft wide.

Who owns Mo 13 S over Truman Reservoir?

It is owned by the State Highway Agency.