US Bridges

456 Avenue over Gravel Ck

Good

Codington County, South Dakota · 5.3S 8W South Shore · Structure no. 000000015200083

Built
1997
28 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
73
2022 count
Owner
County
County Highway Agency

About this bridge

456 Avenue over Gravel Ck is a concrete continuous culvert carrying 456 Avenue over Gravel Ck in Codington County, South Dakota. It was built in 1997, so it is 28 years old, younger than the South Dakota average of 48.9 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 73 vehicles a day, roughly 2% of them trucks, projected to reach 73 by 2032. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries456 Avenue
CrossesGravel Ck
Location5.3S 8W South Shore
RouteCounty Highway 0
Coordinates45.03078, -97.08584
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (6.9 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic73 (2022)
Projected traffic73 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 456 Avenue over Gravel Ck built?

It was built in 1997, making it 28 years old in 2025.

What condition is 456 Avenue over Gravel Ck 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 June 2023.

How much traffic does 456 Avenue over Gravel Ck carry?

About 73 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 456 Avenue over Gravel Ck?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.4 m).

Who owns 456 Avenue over Gravel Ck?

It is owned by the County Highway Agency.