55th Street over Empson Ditch


+40.00728, -105.22537
40°00'26" N, 105°13'31" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:55th Street over Empson Ditch
Structure number:BOLD-08-0.49-1A
Location:250 Ft N of Penn. Ave.
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:44.0 ft. [13.4 m]
Total length:48.9 ft. [14.9 m]
Roadway width between curbs:35.1 ft. [10.7 m]
Deck width edge-to-edge:55.1 ft. [16.8 m]
Owner:City or Municipal Highway Agency [04]
Year built:1996
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Prestressed concrete [5]
Main span design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,220 [as of 2012]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
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:60.7 tons [55.2 metric tons]
Inventory rating:25.4 tons [23.1 metric tons]
Sufficiency rating:85.2

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201585.2FairSatisfactoryVery GoodGood-5220
September 201385.2FairSatisfactoryVery GoodVery Good-5220
February 201184.7GoodGoodVery GoodVery Good-9615
January 200984.7GoodGoodVery GoodVery Good-9615
January 200784.8GoodGoodVery GoodVery Good-9035
December 200484.8GoodGoodVery GoodVery Good-9035
January 200384.2GoodGoodVery GoodVery Good-9035
May 200083.6FairSatisfactoryVery GoodVery Good-11356
June 199985.6FairSatisfactoryVery GoodVery Good-11356
June 199885.6FairSatisfactoryVery GoodVery Good-11356
January 199786.0GoodVery GoodVery GoodVery Good-8123

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Prestressed Concrete Closed Web/Box Girderlinear ft.245245000
Reinforced Concrete Decksq. ft.2,695002,6950
Reinforced Concrete Abutmentlinear ft.110110000
Bridge Rail
Other Material Bridge Raillinear ft.9809800