Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 91.1 m = 298.9 ft
Main Spans: 3 at 34.4 m = 112.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11.9 m = 39.0 ft (2 Lanes) and Out-To-Out: 13 m = 42.7 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Old Town [55225]: Penobscot County [019], Maine [23]
Owned by State Highway Agency [01], DOT District: 4
.1 MI SE JCT 16-43
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Satisfactory [6]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 37.3 metric ton = 41.0 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 28.8 metric ton = 31.7 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: August 1999 [899] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.8 km = 1.1 mi
Traffic
ADT: 4543 (2016) and Trucks: 5%
Future ADT: 6360 (In 2036
)