Bridge Type
Main Span(s): Steel continuous [4] Suspension [13]
Approach Span(s): Steel [3] Girder and floorbeam system [03]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 763.5 m = 2505.0 ft
Main Spans: 3 at 329.2 m = 1080.1 ft
Approach Spans: 7
Skew: 0
Width, Roadway: 7.2 m = 23.6 ft (2 Lanes) and Out-To-Out: 7.5 m = 24.6 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 4.27 m = 14.0 ft and Navigational Clearance: 25.9 m = 85.0 ft
Location
Deer Isle [17145]: Hancock County [009], Maine [23]
Owned by State Highway Agency [01], DOT District: 4
1 MI S 15&175
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 23 metric ton = 25.3 tons (Load Factor(LF) [1])
Inventory: 13.2 metric ton = 14.5 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
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: May 1999 [599] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 16.1 km = 10.0 mi
Traffic
ADT: 5900 (2019) and Trucks: 11%
Future ADT: 4239 (In 2036
)
