US Bridges

308th Avenue over Medicine Creek

Good

Lyman County, South Dakota · 3E of Presho · Structure no. 000000043180201

Built
2000
25 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
110 ft
2 main spans
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

308th Avenue over Medicine Creek is a prestressed concrete tee beam carrying 308th Avenue over Medicine Creek in Lyman County, South Dakota. It was built in 2000, so it is 25 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 60 by 2032. The structure is 110 ft (33.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries308th Avenue
CrossesMedicine Creek
Location3E of Presho
RouteCounty Highway 0
Coordinates43.90385, -100.00584
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length110 ft (33.5 m)
Longest span54 ft (16.5 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic60 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 308th Avenue over Medicine Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is 308th Avenue over Medicine Creek 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 July 2024.

How much traffic does 308th Avenue over Medicine Creek carry?

About 60 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 308th Avenue over Medicine Creek?

The structure is 110 ft (33.5 m) long with a longest span of 54 ft (16.5 m) and a deck 31 ft wide.

Who owns 308th Avenue over Medicine Creek?

It is owned by the County Highway Agency.