US Bridges

County RD (sd 298) over Burlington Northern RR

PoorPosted for load

Fall River County, South Dakota · 0.2 E Igloo Bhod RD · Structure no. 000000024103188

Built
1945
80 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
210 ft
10 main spans
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

County RD (sd 298) over Burlington Northern RR is a wood or timber stringer/multi-beam or girder carrying County RD (sd 298) over Burlington Northern RR in Fall River County, South Dakota. It was built in 1945, so it is 80 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 4 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: posted for load restriction.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 23 by 2032. The structure is 210 ft (64 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty RD (sd 298)
CrossesBurlington Northern RR
Location0.2 E Igloo Bhod RD
RouteCounty Highway 0
Coordinates43.20479, -103.85181
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating18 US tons
Inventory rating13.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans10
Design loadH 20
Structure length210 ft (64 m)
Longest span23 ft (7 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic23 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$810,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was County RD (sd 298) over Burlington Northern RR built?

It was built in 1945, making it 80 years old in 2025.

What condition is County RD (sd 298) over Burlington Northern RR 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 May 2024.

How much traffic does County RD (sd 298) over Burlington Northern RR carry?

About 20 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is County RD (sd 298) over Burlington Northern RR?

The structure is 210 ft (64 m) long with a longest span of 23 ft (7 m) and a deck 32 ft wide.

Who owns County RD (sd 298) over Burlington Northern RR?

It is owned by the County Highway Agency.