US012 over N FORK WHETSTONE CK (Route: 12)
Num:26284073x
Open: no restriction [A]
Built: 2013, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]

Bridge Dimensions
Length: 19.2 m = 63.0 ft
Main Spans: 5 at 3.7 m = 12.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 0 m = 0.0 ft (2 Lanes) and Out-To-Out: 0 m = 0.0 ft for a 15.8 m = 51.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Grant Center [25740]: Grant County [051], South Dakota [46]
Owned by State Highway Agency [01], DOT District: 1
0.6 W JCT SD 15

Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design: HL93 [A]
Operating: 38.6 metric ton = 42.5 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 29.8 metric ton = 32.8 tons (Load and Resistance Factor(LRFR) [3])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: N/A [N]
Road Alignment: Superior to present desirable criteria [9]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 3.5 km = 2.2 mi
Traffic
ADT: 1812 (2020) and Trucks: 17%
Future ADT: 2294 (In 2040 )

W. MILBANK ST-MILB over SOUTH FORK WHETSTONE RV (Route: 0)
Num:26284070x
Open: no restriction [A]
Built: 1984, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Precast Panels [2] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]

Bridge Dimensions
Length: 19.8 m = 65.0 ft
Main Spans: 1 at 19.2 m = 63.0 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 10.4 m = 34.1 ft (2 Lanes) and Out-To-Out: 10.6 m = 34.8 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Grant Center [25740]: Grant County [051], South Dakota [46]
Owned by Town or Township Highway Agency [03], DOT District: 1
0.6W MILBANK

Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 32.7 metric ton = 36.0 tons ()
Inventory: 24.5 metric ton = 27.0 tons ()

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: August 2020 [0820] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.1 km = 0.1 mi
Traffic
ADT: 450 (2018) and Trucks: 2%
Future ADT: 450 (In 2032 )

US012 over BURLINGTON NORTHERN RR (Route: 12)
Num:26282072x
Open: no restriction [A]
Built: 2013, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Bridge Dimensions
Length: 64.9 m = 212.9 ft
Main Spans: 3 at 26.2 m = 86.0 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13 m = 42.7 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Grant Center [25740]: Grant County [051], South Dakota [46]
Owned by State Highway Agency [01], DOT District: 1
0.9 W JCT SD 15

Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: HL93 [A]
Operating: 45.9 metric ton = 50.5 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 35.5 metric ton = 39.1 tons (Load and Resistance Factor(LRFR) [3])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Superior to present desirable criteria [9]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: April 1999 [499] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 3.2 km = 2.0 mi
Traffic
ADT: 1812 (2020) and Trucks: 17%
Future ADT: 2294 (In 2040 )