US Bridges

FAS 3214 280 Ave over Plum Ck

Good

Stanley County, South Dakota · 0.5E & 1.3S of Ft Pierre · Structure no. 000000059402306

Built
1990
35 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
210
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 3214 280 Ave over Plum Ck is a concrete culvert carrying FAS 3214 280 Ave over Plum Ck in Stanley County, South Dakota. It was built in 1990, so it is 35 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 210 vehicles a day, roughly 6% of them trucks, projected to reach 277 by 2032. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesFAS 3214 280 Ave
CrossesPlum Ck
Location0.5E & 1.3S of Ft Pierre
RouteCounty Highway 0
Coordinates44.33495, -100.36341
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating99.9 US tons
Inventory rating99.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (6.9 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2022)
Projected traffic277 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 3214 280 Ave over Plum Ck built?

It was built in 1990, making it 35 years old in 2025.

What condition is FAS 3214 280 Ave over Plum 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 FAS 3214 280 Ave over Plum Ck carry?

About 210 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is FAS 3214 280 Ave over Plum Ck?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3.2 m).

Who owns FAS 3214 280 Ave over Plum Ck?

It is owned by the County Highway Agency.