Bridge Type
Main Span(s): Concrete [1] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 8.5 m = 27.9 ft
Main Spans: 1 at 7.6 m = 24.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.2 m = 20.3 ft (2 Lanes) and Out-To-Out: 7 m = 23.0 ft for a 7 m = 23.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Alna [01010]: Lincoln County [015], Maine [23]
Owned by State Highway Agency [01], DOT District: 2
0.4 MI N OF JCT DOCK ROAD
Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: M 18 / H 20 [4]
Operating: 41.5 metric ton = 45.7 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 32.1 metric ton = 35.3 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: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 5.6 km = 3.5 mi
Traffic
ADT: 987 (2016) and Trucks: 5%
Future ADT: 1579 (In 2036
)
