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Nearby Bridges in NBI 2021: 1


MOUNTAIN ROAD over EWING NARROWS (Route: 0)
Num:6217x
Open: no restriction [A]
Built: 1974, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

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: Bituminous [6]
Bridge Dimensions
Length: 208.5 m = 684.1 ft
Main Spans: 3 at 79.2 m = 259.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.8 m = 32.2 ft for a 8.8 m = 28.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 9.1 m = 29.9 ft
Location
Harpswell [31390]: Cumberland County [005], Maine [23]
Owned by State Highway Agency [01], DOT District: 1
1.8 MI NW OF JCT RTE 24
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 58.3 metric ton = 64.1 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 33.4 metric ton = 36.7 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: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: March 2020 [0320] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 2.3 km = 1.4 mi
Traffic
ADT: 2280 (2016) and Trucks: 5%
Future ADT: 3192 (In 2036 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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