ST 1 A/SB over RR BMRR

Map

Coordinates:
+42.37250, -71.03417
42°22'21" N, 71°02'03" W

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

Name:	ST 1 A/SB over RR BMRR
Structure number:	B162353A0DOTNBI
Old structure number:	3A0041896435101 `(from 1992 edition)`
Location:	.16 KM N OF CALLAHAN TUN
Purpose:	Carries highway over railroad
Route classification:	Other Principal Arterial (Urban) `[14]`
Length of largest span:	74.2 ft. `[22.6 m]`
Total length:	693.9 ft. `[211.5 m]`
Roadway width between curbs:	41.3 ft. `[12.6 m]`
Deck width edge-to-edge:	45.6 ft. `[13.9 m]`
Vertical clearance below bridge:	15.4 ft. `[4.7 m]`
Skew angle:	99°
Owner:	State Highway Agency `[01]`
Year built:	1951
Year reconstructed:	2005
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18 / HS 20 `[5]`
Number of main spans:	10
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:	49,100 `[as of 2014]`
Truck traffic:	3% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Satisfactory `[6 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:	Meets minimum tolerable limits to be left in place as is `[4]`
Underclearances appraisal:	Basically intolerable requiring high priority of corrrective action `[3]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Operating rating:	71.3 tons `[64.8 metric tons]`
Inventory rating:	42.7 tons `[38.8 metric tons]`
Sufficiency rating:	60.6
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. `[35]`
Estimated cost of work:	$15,821,000

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
November 2016	60.6	Fair	Satisfactory	Satisfactory	Fair	FO	49100
November 2014	60.6	Fair	Satisfactory	Satisfactory	Fair	FO	49100
November 2012	61.8	Fair	Satisfactory	Satisfactory	Fair	-	41200
November 2010	61.8	Fair	Satisfactory	Satisfactory	Fair	-	41200
November 2008	61.8	Fair	Satisfactory	Satisfactory	Fair	-	41000
October 1998	75.6	Fair	Good	Good	Satisfactory	FO	27000
October 1996	64.4	Fair	Good	Good	Satisfactory	FO	27000
December 1990	77.0	Fair	Good	Good	Satisfactory	FO	20412

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

Element	Units	Quantity	1. Good	2. Fair	3. Poor	4. Serious
Superstructure
Steel Stringer	linear ft.	5,838	0	5,838	0	0
Steel Protective Coating	sq. ft.	1,998	1,998	0	0	0
Deck
Reinforced Concrete Deck	sq. ft.	11	10	1	0	0
Wearing Surfaces	sq. ft.	11	11	0	0	0
Substructure
Steel Column	each	22	0	22	0	0
Steel Protective Coating	sq. ft.	999	999	0	0	0
Steel Pier Cap	linear ft.	495	0	425	50	20
Steel Protective Coating	sq. ft.	999	999	0	0	0
Joints
Compression Joint	linear ft.	451	0	428	0	23
Bearings
Elastomeric Bearing	each	22	22	0	0	0
Movable Bearing	each	99	0	96	0	3
Steel Protective Coating	sq. ft.	999	999	0	0	0
Fixed Bearing	each	99	0	99	0	0
Steel Protective Coating	sq. ft.	999	999	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	1,388	0	1,249	139	0