INTERSTATE 81 NBL over RT658(SCRATCH GRAVEL)&CK

Map

Coordinates:
+36.82272, -81.51641
36°49'22" N, 81°30'59" W

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

Name:	INTERSTATE 81 NBL over RT658(SCRATCH GRAVEL)&CK
Structure number:	000000000017436
Location:	9.7 FR 107 - 0.30 TO 16
Purpose:	Carries highway over highway and waterway
Route classification:	Principal Arterial - Interstate (Rural) `[01]`
Length of largest span:	107.9 ft. `[32.9 m]`
Total length:	242.1 ft. `[73.8 m]`
Roadway width between curbs:	42.0 ft. `[12.8 m]`
Deck width edge-to-edge:	45.3 ft. `[13.8 m]`
Vertical clearance below bridge:	45.9 ft. `[14.0 m]`
Skew angle:	22°
Owner:	State Highway Agency `[01]`
Year built:	1962
Year reconstructed:	2012
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18+Mod / HS 20+Mod `[6]`
Number of main spans:	3
Main spans material:	Steel continuous `[4]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`

Good/Fair/Poor Condition:	Good
Status:	Open, no restriction `[A]`
Average daily traffic:	14,603 `[as of 2014]`
Truck traffic:	20% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Good `[7 out of 9]`
Structural appraisal:	Better than present minimum criteria `[7]`
Deck geometry appraisal:	Equal to present desirable criteria `[8]`
Underclearances appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Water adequacy appraisal:	Better than present minimum criteria `[7]`
Roadway alignment appraisal:	Better than present minimum criteria `[7]`
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]`
Sufficiency rating:	92.8

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
July 2018	Good	Good	Good	Good	14603	92.8
July 2016	Good	Good	Very Good	Good	14603	92.8
July 2014	Good	Good	Very Good	Good	13902	93.0
July 2012	Good	Very Good	Very Good	Very Good	13902	93.0
March 2011	Fair	Fair	Fair	Satisfactory	13902	61.0
April 2009	Fair	Fair	Fair	Satisfactory	13902	61.0
March 2007	Fair	Fair	Fair	Fair	17107	59.6
March 2005	Fair	Fair	Fair	Fair	17179	59.5
March 2003	Fair	Fair	Fair	Fair	15192	60.4
April 2001	Fair	Fair	Fair	Fair	15134	61.4
March 1999	Fair	Fair	Fair	Fair	15430	61.3
March 1997	Fair	Fair	Fair	Fair	15000	61.5
March 1995	Fair	Satisfactory	Satisfactory	Good	13500	74.9
March 1993	Fair	Good	Satisfactory	Very Good	12450	78.8
March 1991	Fair	Good	Very Good	Fair	9858	67.9

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Steel Girder/Beam	linear ft.	2,420	2,317	103	0	0
Steel Protective Coating	sq. ft.	18,896	18,714	0	182	0
Deck
Reinforced Concrete Deck	sq. ft.	10,970	10,920	50	0	0
Substructure
Reinforced Concrete Column	each	6	6	0	0	0
Reinforced Concrete Abutment	linear ft.	147	145	2	0	0
Reinforced Concrete Pier Cap	linear ft.	102	102	0	0	0
Joints
Compression Joint	linear ft.	90	66	20	0	4
Bearings
Elastomeric Bearing	each	28	28	0	0	0
Steel Protective Coating	sq. ft.	98	98	0	0	0
Fixed Bearing	each	14	14	0	0	0
Steel Protective Coating	sq. ft.	48	48	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	484	457	27	0	0