US Bridges

472nd Ave HWY 133 over Trib to Big Sioux Rv

PoorPosted for load

Minnehaha County, South Dakota · 2E & 0.4S Crooks · Structure no. 000000050180134

Built
1955
70 years old
Condition
Poor
inspected July 2023
Type
Slab
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
1,204
2023 count
Owner
County
County Highway Agency

About this bridge

472nd Ave HWY 133 over Trib to Big Sioux Rv is a concrete continuous slab carrying 472nd Ave HWY 133 over Trib to Big Sioux Rv in Minnehaha County, South Dakota. It was built in 1955, so it is 70 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 1,204 vehicles a day, roughly 2% of them trucks, projected to reach 1,396 by 2038. The structure is 54 ft (16.5 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries472nd Ave HWY 133
CrossesTrib to Big Sioux Rv
Location2E & 0.4S Crooks
RouteCounty Highway 0
Coordinates43.65414, -96.77142
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length54 ft (16.5 m)
Longest span20 ft (6.1 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,204 (2023)
Projected traffic1,396 by 2038
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$558,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 472nd Ave HWY 133 over Trib to Big Sioux Rv built?

It was built in 1955, making it 70 years old in 2025.

What condition is 472nd Ave HWY 133 over Trib to 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 July 2023.

How much traffic does 472nd Ave HWY 133 over Trib to Big Sioux Rv carry?

About 1,204 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is 472nd Ave HWY 133 over Trib to Big Sioux Rv?

The structure is 54 ft (16.5 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.

Who owns 472nd Ave HWY 133 over Trib to Big Sioux Rv?

It is owned by the County Highway Agency.