Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Corrugated Steel [6] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 12.2 m = 40.0 ft
Main Spans: 1 at 11.6 m = 38.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.4 m = 21.0 ft (2 Lanes) and Out-To-Out: 7 m = 23.0 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Walla Walla [99071]: Walla Walla County [071], Washington [53]
Owned by County Highway Agency [02], DOT District: 5
00.10E SR 12
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Serious [3]
Loading
Design: MS 18 / HS 20 [5]
Operating: 24.9 metric ton = 27.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 19.4 metric ton = 21.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
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: Meets minimum tolerable limits to be left in place as is [4] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: September 1999 [999] 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: 15.9 km = 9.9 mi
Traffic
ADT: 80 (2020) and Trucks: 10%
Future ADT: 90 (In 2040
)