HWY ADAMS ST over WATER NEPONSET RIVER

Map

Coordinates:
+42.27084, -71.06809
42°16'15" N, 71°04'05" W

Source: National Bridge Inventory
Information not verified. Use at your own risk.

Name:	HWY ADAMS ST over WATER NEPONSET RIVER
Structure number:	B16003381MUNNBI
Old structure number:	381MUN896003100 `(from 1992 edition)`
Location:	OVER NEPONSET RIV AT MILT
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Other Principal Arterial (Urban) `[14]`
Length of largest span:	32.2 ft. `[9.8 m]`
Total length:	119.1 ft. `[36.3 m]`
Roadway width between curbs:	42.3 ft. `[12.9 m]`
Deck width edge-to-edge:	59.7 ft. `[18.2 m]`
Skew angle:	22°
Owner:	City or Municipal Highway Agency `[04]`
Year built:	1765
Year reconstructed:	2006
Historic significance:	Bridge is on the National Register of Historic Places `[1]`
Design load:	MS 18 / HS 20 `[5]`
Number of main spans:	2
Main spans material:	Masonry `[8]`
Main spans design:	Arch - Deck `[11]`
Deck type:	Other `[9]`
Wearing surface:	Bituminous `[6]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	29,200 `[as of 2016]`
Truck traffic:	5% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Water adequacy appraisal:	Better than present minimum criteria `[7]`
Roadway alignment appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
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 is scour critical; bridge foundations determined to be unstable. `[3]`
Operating rating:	68.4 tons `[62.2 metric tons]`
Inventory rating:	41.0 tons `[37.3 metric tons]`
Sufficiency rating:	94.2
Recommended work:	Widening of existing bridge or other major structure without deck rehabilitation or replacement `[33]`
Estimated cost of work:	$239,000

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
November 2016	94.2	Fair	Good	Satisfactory	Satisfactory	-	29200
November 2014	94.4	Fair	Good	Satisfactory	Satisfactory	-	27200
November 2012	94.8	Fair	Good	Satisfactory	Satisfactory	-	23000
November 2010	94.9	Fair	Good	Satisfactory	Satisfactory	-	21600
November 2008	94.9	Fair	Good	Satisfactory	Satisfactory	-	21600
October 2006	94.1	Fair	Good	Satisfactory	Satisfactory	-	20160
November 2004	25.7	Poor	Serious	Critical	Poor	SD	19900
November 2002	25.7	Poor	Serious	Critical	Poor	SD	19900
December 2000	25.7	Poor	Serious	Critical	Poor	SD	19900
December 1998	25.7	Poor	Serious	Critical	Poor	SD	19900
February 1996	27.5	Poor	Serious	Serious	Poor	SD	19900