US Bridges

Hampel RD 721 over Crooked CR

Fair

Lincoln County, Missouri · S 8 T 48 N R 1 E · Structure no. 21264

Built
1990
35 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
400
2023 count
Owner
County
County Highway Agency

About this bridge

Hampel RD 721 over Crooked CR is a steel stringer/multi-beam or girder carrying Hampel RD 721 over Crooked CR in Lincoln County, Missouri. It was built in 1990, so it is 35 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 400 vehicles a day, roughly 10% of them trucks, projected to reach 640 by 2043. The structure is 63 ft (19.2 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesHampel RD 721
CrossesCrooked CR
LocationS 8 T 48 N R 1 E
RouteCounty Highway 298
CountyLincoln County
StateMissouri
Coordinates38.93067, -90.93342
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.5 US tons
Inventory rating38.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic640 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Hampel RD 721 over Crooked CR built?

It was built in 1990, making it 35 years old in 2025.

What condition is Hampel RD 721 over Crooked 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 April 2024.

How much traffic does Hampel RD 721 over Crooked CR carry?

About 400 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Hampel RD 721 over Crooked CR?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns Hampel RD 721 over Crooked CR?

It is owned by the County Highway Agency.