SR 261 over SNAKE RIVER

Map 

Facts 

Name:	SR 261 over SNAKE RIVER
Structure number:	0008390A0000000
Location:	14.8 N JCT US 12
Purpose:	Carries highway over highway and waterway
Route classification:	Major Collector (Rural) [07]
Length of largest span:	520.0 ft. [158.5 m]
Total length:	2040.1 ft. [621.8 m]
Roadway width between curbs:	20.0 ft. [6.1 m]
Deck width edge-to-edge:	22.0 ft. [6.7 m]
Vertical clearance above deck:	15.1 ft. [4.6 m]
Vertical clearance below bridge:	49.9 ft. [15.2 m]
Owner:	State Highway Agency [01]
Year built:	1927
Year reconstructed:	1968
Historic significance:	Bridge is on the National Register of Historic Places [1]
Design load:	M 18 / H 20 [4]
Number of main spans:	3
Main spans material:	Steel continuous [4]
Main spans design:	Truss - Thru [10]
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:	495 [as of 2007]
Truck traffic:	16% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Channel protection:	Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:	56.4 tons [51.3 metric tons]
Inventory rating:	33.7 tons [30.6 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	61.0
Estimated cost of work:	$854,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	586 [as of 1994]
Truck traffic:	27% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Good [7 out of 9]
Channel protection:	Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	30.7 tons [27.9 metric tons]
Inventory rating:	18.8 tons [17.1 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	32.5
Recommended work:	Replacement of bridge or other structure because of relocation of road. [32]
Estimated cost of work:	$1,284,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	480 [as of 1984]
Truck traffic:	15% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Good [7 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	35.6 tons [32.4 metric tons]
Inventory rating:	18.8 tons [17.1 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	39.5
Recommended work:	Replacement of bridge or other structure because of relocation of road. [32]
Estimated cost of work:	$7,081,000

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