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Ducktrap River Bridge


Overall View Of Bridge. Looking From South To North Showing Approach From The South On Us Route 1

Photo taken by Brian Vanden Brink for the Historic American Engineering Record

View photos at Library of Congress

BH Photo #224729



The construction of this bridge is unique in Maine as it consists of two bridges, one built on top of the other to accommodate a change in grade of the highway. The first bridge, designed in 1919, is a through deck reinforced concrete structure. The second bridge, designed in 1932, is a reinforced concrete T-beam structure with open spandrel arches erected on the deck of the 1919 bridge. The 1932 bridge forms a second tier and suggests the appearance of a Roman aqueduct. The unknown designer(s) found a solution to adapt an existing bridge to meet the requirements for raising the grade of a major highway while creating one of the most unusual engineering monuments in the state.

-- Historic American Engineering Record


Lost Concrete tee beam bridge over Ducktrap River on US 1
Waldo County, Maine
Replaced by new bridge
Lower deck built in 1920; upper deck built in 1932; Replaced in 1999
- L.B. Jones
Concrete tee beam
Length of largest span: 59.1 ft.
Total length: 158.1 ft.
Deck width: 24.0 ft.
Approximate latitude, longitude
+44.29833, -69.00333   (decimal degrees)
44°17'54" N, 69°00'12" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/499734/4905008 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2016)
Inventory numbers
ME 2235 (Maine bridge number)
BH 51202 (Bridgehunter.com ID)
Inspection report (as of July 2017)
Overall condition: Good
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 59 (out of 100)
View more at BridgeReports.com

Update Log 

  • February 6, 2012: Added by Jason Smith


  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
  • HAER ME-62 - Ducktrap Bridge, Spanning Ducktrap River at U.S. Route 1, Lincolnville, Waldo County, ME