HWY COLUMBIA RD over COMB OLD COLNY&MBTA&RED

Map

Coordinates:
+42.32139, -71.05250
42°19'17" N, 71°03'09" W

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

Name:	HWY COLUMBIA RD over COMB OLD COLNY&MBTA&RED
Structure number:	B161304ERDOTNBI
Location:	.1 MI E OF ST RTE 3
Purpose:	Carries highway and pedestrian walkway over highway and railroad
Route classification:	Other Principal Arterial (Urban) `[14]`
Length of largest span:	120.1 ft. `[36.6 m]`
Total length:	224.1 ft. `[68.3 m]`
Roadway width between curbs:	49.9 ft. `[15.2 m]`
Deck width edge-to-edge:	71.9 ft. `[21.9 m]`
Vertical clearance below bridge:	16.7 ft. `[5.1 m]`
Skew angle:	6°
Owner:	State Highway Agency `[01]`
Year built:	1956
Year reconstructed:	1983
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	M 18 / H 20 `[4]`
Number of main spans:	2
Main spans material:	Steel `[3]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Bituminous `[6]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	79,500 `[as of 2016]`
Truck traffic:	3% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Fair `[5 out of 9]`
Structural appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Deck geometry appraisal:	Basically intolerable requiring high priority of corrrective action `[3]`
Underclearances appraisal:	Basically intolerable requiring high priority of corrrective action `[3]`
Roadway alignment appraisal:	Equal to present minimum criteria `[6]`
Scour condition:	Bridge not over waterway. `[N]`
Operating rating:	56.0 tons `[50.9 metric tons]`
Inventory rating:	36.2 tons `[32.9 metric tons]`
Sufficiency rating:	50.6
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. `[35]`
Estimated cost of work:	$8,114,000

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
February 2016	50.6	Fair	Good	Good	Fair	FO	79500
February 2014	51.9	Fair	Good	Good	Fair	FO	71000
February 2012	51.9	Fair	Good	Good	Fair	FO	71000
February 2010	51.5	Fair	Good	Good	Fair	FO	73500

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.

Element	Units	Quantity	1. Good	2. Fair	3. Poor	4. Serious
Superstructure
Steel Girder/Beam	linear ft.	1,573	300	1,273	0	0
Steel Protective Coating	sq. ft.	1,998	1,998	0	0	0
Deck
Reinforced Concrete Deck	sq. ft.	8,518	8,092	426	0	0
Wearing Surfaces	sq. ft.	6,292	5,977	315	0	0
Substructure
Reinforced Concrete Pier Wall	linear ft.	72	52	0	20	0
Reinforced Concrete Abutment	linear ft.	165	140	0	25	0
Joints
Compression Joint	linear ft.	82	82	0	0	0
Bearings
Movable Bearing	each	24	0	24	0	0
Steel Protective Coating	sq. ft.	999	999	0	0	0
Fixed Bearing	each	25	25	0	0	0
Steel Protective Coating	sq. ft.	999	999	0	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	420	420	0	0	0