I-25 NBL/SBL over UNNAMED WATERWAY

Map 

Facts 

Name:	I-25 NBL/SBL over UNNAMED WATERWAY
Structure number:	000000000006735
Location:	12.3 MI N OF US-70
Purpose:	Carries highway over waterway
Route classification:	Principal Arterial - Interstate (Rural) [01]
Length of largest span:	9.8 ft. [3.0 m]
Total length:	23.6 ft. [7.2 m]
Skew angle:	30°
Owner:	State Highway Agency [01]
Year built:	1966
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:	2
Main spans material:	Concrete continuous [2]
Main spans design:	Culvert [19]
Deck type:	Not applicable [N]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	8,542 [as of 2008]
Truck traffic:	18% of total traffic
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:	Navigation protection not required [1]
Culvert condition:	Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	50.3 tons [45.7 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Sufficiency rating:	82.0

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	5,953 [as of 1998]
Truck traffic:	17% of total traffic
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]
Culvert condition:	Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	49.9 tons [45.4 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	82.3

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	2,824 [as of 1991]
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]
Culvert condition:	Moderate to major deterioration or disintegration, extensive cracking and leaching or spalls on concrete or masonry walls and slabs. Minor settlement or misalignment. Noticeable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection in one section, significant corrosion or deep pitting. [5]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	42.6 tons [38.7 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	71.7

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