US Bridges

Eicher RD over Horse Ck

PoorClosed to traffic

Butte County, South Dakota · 3.2 S NEWELL.8E US79 · Structure no. 000000010317373

Built
1950
75 years old
Condition
Poor
inspected August 2016
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
101 ft
2 main spans
Daily traffic
47
2022 count
Owner
County
County Highway Agency

About this bridge

Eicher RD over Horse Ck is a wood or timber stringer/multi-beam or girder carrying Eicher RD over Horse Ck in Butte County, South Dakota. It was built in 1950, so it is 75 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 poor condition with a lowest component rating of 0 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 47 vehicles a day, roughly 2% of them trucks, projected to reach 60 by 2032. The structure is 101 ft (30.8 m) long and 18 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesEicher RD
CrossesHorse Ck
Location3.2 S NEWELL.8E US79
RouteCounty Highway 0
Coordinates44.67354, -103.41283
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Superstructure1 Imminent FailureMajor deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2016
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourUnknown foundation; not evaluated for scour
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating3 US tons
Inventory rating3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length101 ft (30.8 m)
Longest span31 ft (9.4 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47 (2022)
Projected traffic60 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Eicher RD over Horse Ck built?

It was built in 1950, making it 75 years old in 2025.

What condition is Eicher RD over Horse Ck in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2016.

How much traffic does Eicher RD over Horse Ck carry?

About 47 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Eicher RD over Horse Ck?

The structure is 101 ft (30.8 m) long with a longest span of 31 ft (9.4 m) and a deck 18 ft wide.

Who owns Eicher RD over Horse Ck?

It is owned by the County Highway Agency.