ROAD 99W over STONY CREEK (Route: 0)
Num: 11C0196x
Open: no restriction [A]
Built: 1913, Reconstructed: 1952
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Arch - Deck [11]
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: 361.8 m = 1187.1 ft
Main Spans: 13 at 32.6 m = 107.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.8 m = 32.2 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Glenn County [021], California [06]
Owned by County Highway Agency [02], DOT District: 3
1.3 MI N OF S.H. 32

Condition
Deck: Not Applicable [N]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design:
Operating: 48.3 metric ton = 53.1 tons (Load Factor(LF) [1])
Inventory: 28.8 metric ton = 31.7 tons (Load Factor(LF) [1])

Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: September 2020 [0920] 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: 4 km = 2.5 mi
Traffic
ADT: 4157 (2005) and Trucks: 10%
Future ADT: 5898 (In 2041 )

ROAD 99W over HAMBRIGHT CREEK (Route: 0)
Num: 11C0195x
Open: no restriction [A]
Built: 1936, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 30.5 m = 100.1 ft
Main Spans: 4 at 8.8 m = 28.9 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 10.4 m = 34.1 ft (2 Lanes) and Out-To-Out: 12.1 m = 39.7 ft for a 8.8 m = 28.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Glenn County [021], California [06]
Owned by County Highway Agency [02], DOT District: 3
0.9 MI N OF S.H. 32

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 26.2 metric ton = 28.8 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 20.1 metric ton = 22.1 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])

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: February 2021 [0221] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 4 km = 2.5 mi
Traffic
ADT: 3301 (2009) and Trucks: 10%
Future ADT: 5840 (In 2038 )