US Bridges

476A Ave Center RD over North Fork Yellow Bank R

Good

Grant County, South Dakota · 1.5W & 3.5S Milbank · Structure no. 000000026275105

Built
2004
21 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

476A Ave Center RD over North Fork Yellow Bank R is a prestressed concrete tee beam carrying 476A Ave Center RD over North Fork Yellow Bank R in Grant County, South Dakota. It was built in 2004, so it is 21 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 20 vehicles a day, roughly 2% of them trucks, projected to reach 20 by 2032. The structure is 40 ft (12.3 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries476A Ave Center RD
CrossesNorth Fork Yellow Bank R
Location1.5W & 3.5S Milbank
RouteCounty Highway 0
Coordinates45.17123, -96.67131
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span37 ft (11.4 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 476A Ave Center RD over North Fork Yellow Bank R built?

It was built in 2004, making it 21 years old in 2025.

What condition is 476A Ave Center RD over North Fork Yellow Bank R 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 476A Ave Center RD over North Fork Yellow Bank R carry?

About 20 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 476A Ave Center RD over North Fork Yellow Bank R?

The structure is 40 ft (12.3 m) long with a longest span of 37 ft (11.4 m) and a deck 27 ft wide.

Who owns 476A Ave Center RD over North Fork Yellow Bank R?

It is owned by the County Highway Agency.