IH 20 WB over FM 644(S)


+32.41512, -100.71315
32°24'54" N, 100°42'47" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IH 20 WB over FM 644(S)
Structure number:081680000601159
Location:10.1 MI E OF SH 208(S)
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:44.9 ft. [13.7 m]
Total length:113.9 ft. [34.7 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:40.0 ft. [12.2 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Owner:State Highway Agency [01]
Year built:1958
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: May 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:6,560 [as of 2013]
Truck traffic:39% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:48.5 tons [44.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:93.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201593.0FairGoodSatisfactoryGoodFO6560
May 201393.0GoodGoodGoodGoodFO5860
May 201193.0GoodGoodGoodGoodFO6670
May 200994.0GoodGoodGoodGoodFO5840
March 200794.0GoodGoodGoodGoodFO6620
March 200594.0GoodGoodGoodGoodFO6690
March 200397.0GoodGoodGoodGood-6150
March 200198.0GoodVery GoodGoodGood-6000
March 199998.0GoodVery GoodGoodGood-5400
April 1997100.0GoodGoodVery GoodGood-4900
May 1995100.0FairGoodVery GoodSatisfactory-4690
March 199399.0GoodGoodGoodGood-4450
August 199099.0GoodGoodGoodGood-4600

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Columneach80800
Pourable Jointlinear ft.2424000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.7373000
Reinforced Concrete Slabsq. ft.33000