MERRIAM ST over E CHAN MISSISSIPPI RIVER

Map 

Facts 

Name:	MERRIAM ST over E CHAN MISSISSIPPI RIVER
Structure number:	27664
Location:	AT NICOLLET ISLAND
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Local (Urban) [19]
Length of largest span:	199.2 ft. [60.7 m]
Total length:	256.6 ft. [78.2 m]
Roadway width between curbs:	34.1 ft. [10.4 m]
Deck width edge-to-edge:	35.8 ft. [10.9 m]
Owner:	City or Municipal Highway Agency [04]
Year built:	1887
Year reconstructed:	1985
Historic significance:	Bridge is eligible for the National Register of Historic Places [2]
Design load:	MS 13.5 / HS 15 [3]
Main span material:	Steel [3]
Main span design:	Stringer/Multi-beam or girder [02]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) [1]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,991 [as of 2007]
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
Channel protection:	There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	106.3 tons [96.6 metric tons]
Inventory rating:	63.8 tons [58.0 metric tons]
Sufficiency rating:	96.8

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,153 [as of 1986]
Truck traffic:	10% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
Channel protection:	There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	105.5 tons [95.9 metric tons]
Inventory rating:	63.3 tons [57.5 metric tons]
Sufficiency rating:	98.9

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,153 [as of 1986]
Truck traffic:	1% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
Channel protection:	There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	26.7 tons [24.3 metric tons]
Inventory rating:	26.7 tons [24.3 metric tons]
Sufficiency rating:	85.4

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