US Bridges

SE Hedge RD over Br of Grindstone C

Fair

DeKalb County, Missouri · S 7 T 57 N R 30 W · Structure no. 23846

Built
1984
41 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

SE Hedge RD over Br of Grindstone C is a concrete culvert carrying SE Hedge RD over Br of Grindstone C in DeKalb County, Missouri. It was built in 1984, so it is 41 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2044. The structure is 25 ft (7.6 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSE Hedge RD
CrossesBr of Grindstone C
LocationS 7 T 57 N R 30 W
RouteCounty Highway 436
CountyDeKalb County
StateMissouri
Coordinates39.76633, -94.31922
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic40 by 2044
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 SE Hedge RD over Br of Grindstone C built?

It was built in 1984, making it 41 years old in 2025.

What condition is SE Hedge RD over Br of Grindstone C 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 February 2023.

How much traffic does SE Hedge RD over Br of Grindstone C carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SE Hedge RD over Br of Grindstone C?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m) and a deck 34 ft wide.

Who owns SE Hedge RD over Br of Grindstone C?

It is owned by the County Highway Agency.