MILL CREEK RD over MILL CREEK (Route: 20570)
Num:80733000000000x
Open: no restriction [A]
Built: 1958, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Slab [01]
Approach Span(s): Concrete continuous [2] Slab [01]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 31.4 m = 103.0 ft
Main Spans: 3 at 12.5 m = 41.0 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 7.9 m = 25.9 ft (2 Lanes) and Out-To-Out: 9.8 m = 32.2 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Cowlitz [99015]: Cowlitz County [015], Washington [53]
Owned by County Highway Agency [02], DOT District: 4
0.19 N OF SR 4 (MP 47.64)

Condition
Deck: Poor [4]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design: M 18 / H 20 [4]
Operating: 33.6 metric ton = 37.0 tons (Load Factor(LF) [1])
Inventory: 20 metric ton = 22.0 tons (Load Factor(LF) [1])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: August 1999 [899] and Frequency: 24

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 700 (2016) and Trucks: 5%
Future ADT: 900 (In 2036 )

SR 4 over MILL CREEK (Route: 4)
Num:0007004A0000000x
Open: no restriction [A]
Built: 1963, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 50.3 m = 165.0 ft
Main Spans: 1 at 48.8 m = 160.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 10.3 m = 33.8 ft for a 11.6 m = 38.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Cowlitz County [015], Washington [53]
Owned by State Highway Agency [01], DOT District: 4
2.0 E WAHKIAKUM CO

Condition
Deck: Very Good [8]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 89.8 metric ton = 98.8 tons (Load Factor(LF) [1])
Inventory: 57.1 metric ton = 62.8 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Inspections
Date: September 2018 [0918] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 3946 (2019) and Trucks: 10%
Future ADT: 5271 (In 2039 )