US Bridges

Happy Sac RD over Happy Sac CR

Fair

Franklin County, Missouri · S 14 T 42 N R 1 W · Structure no. 19859

Built
1994
31 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
99 ft
2 main spans
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

Happy Sac RD over Happy Sac CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Happy Sac RD over Happy Sac CR in Franklin County, Missouri. It was built in 1994, so it is 31 years old, younger 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 200 vehicles a day, roughly 12% of them trucks, projected to reach 360 by 2043. The structure is 99 ft (30.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHappy Sac RD
CrossesHappy Sac CR
LocationS 14 T 42 N R 1 W
RouteCounty Highway 237
CountyFranklin County
StateMissouri
Coordinates38.3912, -91.00565
Functional classRural Local

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 inspectionJanuary 2025
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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating71.4 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span48 ft (14.6 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic360 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Happy Sac RD over Happy Sac CR built?

It was built in 1994, making it 31 years old in 2025.

What condition is Happy Sac RD over Happy Sac CR 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 2025.

How much traffic does Happy Sac RD over Happy Sac CR carry?

About 200 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Happy Sac RD over Happy Sac CR?

The structure is 99 ft (30.2 m) long with a longest span of 48 ft (14.6 m) and a deck 27 ft wide.

Who owns Happy Sac RD over Happy Sac CR?

It is owned by the County Highway Agency.