US Bridges

Rp MO21N to Hayden over Sandy CR

Good

Jefferson County, Missouri · S 23 T 41 N R 4 E · Structure no. 31524

Built
2006
19 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
182 ft
3 main spans
Daily traffic
368
2024 count
Owner
State
State Highway Agency

About this bridge

Rp MO21N to Hayden over Sandy CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Rp MO21N to Hayden over Sandy CR in Jefferson County, Missouri. It was built in 2006, so it is 19 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 368 vehicles a day, roughly 17% of them trucks, projected to reach 681 by 2044. The structure is 182 ft (55.5 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRp MO21N to Hayden
CrossesSandy CR
LocationS 23 T 41 N R 4 E
RouteState Highway 0
Coordinates38.26774, -90.55179
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.3 US tons
Inventory rating52.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length182 ft (55.5 m)
Longest span70 ft (21.3 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic368 (2024)
Projected traffic681 by 2044
Trucks17%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rp MO21N to Hayden over Sandy CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is Rp MO21N to Hayden over Sandy 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 December 2024.

How much traffic does Rp MO21N to Hayden over Sandy CR carry?

About 368 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is Rp MO21N to Hayden over Sandy CR?

The structure is 182 ft (55.5 m) long with a longest span of 70 ft (21.3 m) and a deck 39 ft wide.

Who owns Rp MO21N to Hayden over Sandy CR?

It is owned by the State Highway Agency.