US Bridges

151 Street over Big Sioux Rv

PoorPosted for load

Grant County, South Dakota · 13.1W & 4.5S Marvin · Structure no. 000000026026090

Built
1958
67 years old, rebuilt 1980
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
30 ft
1 main span
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

151 Street over Big Sioux Rv is a wood or timber stringer/multi-beam or girder carrying 151 Street over Big Sioux Rv in Grant County, South Dakota. It was built in 1958 and reconstructed in 1980, so it is 67 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 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 30 ft (9.1 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries151 Street
CrossesBig Sioux Rv
Location13.1W & 4.5S Marvin
RouteCounty Highway 0
Coordinates45.19554, -97.17219
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18 US tons
Inventory rating11.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span29 ft (8.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$600,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 151 Street over Big Sioux Rv built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1980.

What condition is 151 Street over Big Sioux Rv 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 2024.

How much traffic does 151 Street over Big Sioux Rv carry?

About 45 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 151 Street over Big Sioux Rv?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.7 m) and a deck 24 ft wide.

Who owns 151 Street over Big Sioux Rv?

It is owned by the County Highway Agency.