HWY CONGRESS ST over WATER FORT POINT CHANNEL

Map 

Facts 

Name:	HWY CONGRESS ST over WATER FORT POINT CHANNEL
Structure number:	B1603238AMUNNBI
Old structure number:	38AMUN896032100 (from 1992 edition)
Location:	OVER FT POINT CHANNEL
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	93.8 ft. [28.6 m]
Total length:	546.9 ft. [166.7 m]
Roadway width between curbs:	40.0 ft. [12.2 m]
Deck width edge-to-edge:	45.6 ft. [13.9 m]
Vertical clearance above deck:	25.6 ft. [7.8 m]
Vertical clearance below bridge:	5.9 ft. [1.8 m]
Owner:	City or Municipal Highway Agency [04]
Year built:	1850
Year reconstructed:	2009
Historic significance:	Bridge is eligible for the National Register of Historic Places [2]
Design load:	MS 18 / HS 20 [5]
Number of main spans:	2
Main spans material:	Steel [3]
Main spans design:	Movable - Bascule [16]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Bituminous [6]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	14,600 [as of 2003]
Truck traffic:	10% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
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]
Pier/abutment protection:	In place but in a deteriorated condition [3]
Operating rating:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	76.6

2000 Inspection 

Status:	Open, posting recommended but not legally implemented [B]
Average daily traffic:	1,900 [as of 1999]
Truck traffic:	10% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Poor [4 out of 9]
Substructure condition:	Critical [2 out of 9]
Channel protection:	Bank protection has failed. River control devices have been destroyed. Stream bed aggradation, degradation or lateral movement has changed the channel to now threaten the bridge and/or approach roadway. [3]
Pier/abutment protection:	In place but in a deteriorated condition [3]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	14.5 tons [13.2 metric tons]
Inventory rating:	19.4 tons [17.6 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	37.6
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$9,555,000

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