US Bridges

Ash Creek Road over Upper Deep Ck

Good

Haakon County, South Dakota · 10.6W 2.9S Milesville · Structure no. 000000028053230

Built
2015
10 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
37
2022 count
Owner
County
County Highway Agency

About this bridge

Ash Creek Road over Upper Deep Ck is a prestressed concrete tee beam carrying Ash Creek Road over Upper Deep Ck in Haakon County, South Dakota. It was built in 2015, so it is 10 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 37 vehicles a day, roughly 9% of them trucks, projected to reach 50 by 2032. The structure is 40 ft (12.2 m) long and 31 ft wide.

CarriesAsh Creek Road
CrossesUpper Deep Ck
Location10.6W 2.9S Milesville
RouteCounty Highway 0
Coordinates44.41675, -101.89265
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 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 alignment9: Superior to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2022)
Projected traffic50 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Ash Creek Road over Upper Deep Ck built?

It was built in 2015, making it 10 years old in 2025.

What condition is Ash Creek Road over Upper Deep 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 September 2024.

How much traffic does Ash Creek Road over Upper Deep Ck carry?

About 37 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Ash Creek Road over Upper Deep Ck?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 31 ft wide.

Who owns Ash Creek Road over Upper Deep Ck?

It is owned by the County Highway Agency.