US Bridges

Sugar Grove RD 709 over Crooked CR

Fair

Lincoln County, Missouri · S 11 T 48 N R 1 W · Structure no. 21194

Built
1992
33 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

Sugar Grove RD 709 over Crooked CR is a steel stringer/multi-beam or girder carrying Sugar Grove RD 709 over Crooked CR in Lincoln County, Missouri. It was built in 1992, so it is 33 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2043. The structure is 58 ft (17.7 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSugar Grove RD 709
CrossesCrooked CR
LocationS 11 T 48 N R 1 W
RouteCounty Highway 294
CountyLincoln County
StateMissouri
Coordinates38.93678, -90.98319
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length58 ft (17.7 m)
Longest span55 ft (16.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic80 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Sugar Grove RD 709 over Crooked CR built?

It was built in 1992, making it 33 years old in 2025.

What condition is Sugar Grove RD 709 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 Sugar Grove RD 709 over Crooked CR carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sugar Grove RD 709 over Crooked CR?

The structure is 58 ft (17.7 m) long with a longest span of 55 ft (16.8 m) and a deck 24 ft wide.

Who owns Sugar Grove RD 709 over Crooked CR?

It is owned by the County Highway Agency.