US Bridges

Elm Springs Rd. over Alkali Ck

Fair

Meade County, South Dakota · 2.0E8.7S Elm Springs · Structure no. 000000047539586

Built
1960
65 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
115 ft
4 main spans
Daily traffic
53
2022 count
Owner
County
County Highway Agency

About this bridge

Elm Springs Rd. over Alkali Ck is a steel stringer/multi-beam or girder carrying Elm Springs Rd. over Alkali Ck in Meade County, South Dakota. It was built in 1960, so it is 65 years old, older than the South Dakota average of 48.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 53 vehicles a day, roughly 3% of them trucks, projected to reach 53 by 2032. The structure is 115 ft (35.1 m) long and 30 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesElm Springs Rd.
CrossesAlkali Ck
Location2.0E8.7S Elm Springs
RouteCounty Highway 0
Coordinates44.18695, -102.49068
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.9 US tons
Inventory rating23.1 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans4
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2022)
Projected traffic53 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Elm Springs Rd. over Alkali Ck built?

It was built in 1960, making it 65 years old in 2025.

What condition is Elm Springs Rd. over Alkali Ck 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 July 2024.

How much traffic does Elm Springs Rd. over Alkali Ck carry?

About 53 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Elm Springs Rd. over Alkali Ck?

The structure is 115 ft (35.1 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.

Who owns Elm Springs Rd. over Alkali Ck?

It is owned by the County Highway Agency.