Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]
Bridge Dimensions
Length: 112.5 m = 369.1 ft
Main Spans: 1 at 73.5 m = 241.2 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 10.7 m = 35.1 ft approaching roadway.
Vertical Clearance: 4.8 m = 15.7 ft and Navigational Clearance: 0 = N/A
Location
T3 Indian Purchase [75650]: Penobscot County [019], Maine [23]
Owned by State Highway Agency [01], DOT District: 5
1.7 MI.W. TOWNLINE
Condition
Deck: Poor [4]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: M 13.5 / H 15 [2]
Operating: 17.8 metric ton = 19.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 13.6 metric ton = 15.0 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
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: Better than present minimum criteria [7]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: January 2021 [0121] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 6.4 km = 4.0 mi
Traffic
ADT: 851 (2016) and Trucks: 5%
Future ADT: 1362 (In 2036
)
