US Bridges

Mapleton RD over Big Sioux River

Good

Minnehaha County, South Dakota · 1.3W & 0.8N Renner · Structure no. 000000050192132

Built
1990
35 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
223 ft
5 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

Mapleton RD over Big Sioux River is a concrete continuous slab carrying Mapleton RD over Big Sioux River in Minnehaha 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 59 vehicles a day, roughly 2% of them trucks, projected to reach 65 by 2037. The structure is 223 ft (68 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMapleton RD
CrossesBig Sioux River
Location1.3W & 0.8N Renner
RouteCounty Highway 0
Coordinates43.65758, -96.74552
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.6 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length223 ft (68 m)
Longest span48 ft (14.6 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic65 by 2037
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$1.7 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mapleton RD over Big Sioux River built?

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

What condition is Mapleton RD over Big Sioux River 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 July 2023.

How much traffic does Mapleton RD over Big Sioux River carry?

About 59 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Mapleton RD over Big Sioux River?

The structure is 223 ft (68 m) long with a longest span of 48 ft (14.6 m) and a deck 35 ft wide.

Who owns Mapleton RD over Big Sioux River?

It is owned by the County Highway Agency.