US Bridges

Lions Den RD over Trib to Rock CR

Good

Jefferson County, Missouri · S 34 T 43 N R 5 E · Structure no. 32848

Built
2010
15 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
2,500
2023 count
Owner
County
County Highway Agency

About this bridge

Lions Den RD over Trib to Rock CR is a prestressed concrete box beam or girders - multiple carrying Lions Den RD over Trib to Rock CR in Jefferson County, Missouri. It was built in 2010, so it is 15 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,500 vehicles a day, roughly 10% of them trucks, projected to reach 4,250 by 2043. The structure is 61 ft (18.7 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLions Den RD
CrossesTrib to Rock CR
LocationS 34 T 43 N R 5 E
RouteCounty Highway 0
CountyJefferson County
StateMissouri
Coordinates38.41899, -90.45556
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating38.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length61 ft (18.7 m)
Longest span59 ft (18 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2023)
Projected traffic4,250 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lions Den RD over Trib to Rock CR built?

It was built in 2010, making it 15 years old in 2025.

What condition is Lions Den RD over Trib to Rock CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does Lions Den RD over Trib to Rock CR carry?

About 2,500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Lions Den RD over Trib to Rock CR?

The structure is 61 ft (18.7 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.

Who owns Lions Den RD over Trib to Rock CR?

It is owned by the County Highway Agency.