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NH 11 over MERRYMEETING RIVER

Map

Coordinates:
+43.47009, -71.23402
43°28'12" N, 71°14'02" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NH 11 over MERRYMEETING RIVER
Structure number:000601630018400
Location:8.5 MI FROM GILFORD TL
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:29.9 ft. [9.1 m]
Total length:35.1 ft. [10.7 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:37.7 ft. [11.5 m]
Owner:State Highway Agency [01]
Year built:1934
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
Main span material:Concrete [1]
Main span design:Frame [07]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2018

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:8,178 [as of 2017]
Truck traffic:7% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:21.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$3,142,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2018PoorPoorPoorSatisfactory817821.8
November 2017PoorPoorPoorSatisfactory780021.8
November 2016PoorPoorPoorSatisfactory780021.8
November 2015PoorPoorPoorSatisfactory830021.8
August 2014PoorPoorPoorSatisfactory830021.8
November 2012FairFairFairSatisfactory680039.8
May 2012FairFairFairSatisfactory680039.8
May 2010FairFairFairSatisfactory680039.8
May 2008FairFairFairSatisfactory970039.8
June 2006FairFairFairSatisfactory970039.8
April 2004FairFairFairSatisfactory550039.8
June 2002FairFairFairSatisfactory550039.8
June 2000FairFairFairSatisfactory550039.8
July 1998FairFairFairSatisfactory550039.8
August 1996FairFairFairSatisfactory550039.8
June 1994FairFairFairGood660050.4
April 1992FairFairFairGood308054.2
June 1990FairFairFairGood308056.2