SH 121 ML SBND over US 287 ML, RR SPUR

Map

Coordinates:
+39.91819, -105.09114
39°55'05" N, 105°05'28" W

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

Name:	SH 121 ML SBND over US 287 ML, RR SPUR
Structure number:	E-16-HS
Location:	IN BROOMFIELD
Purpose:	Carries highway overpass over highway and railroad
Route classification:	Other Principal Arterial (Urban) `[14]`
Length of largest span:	114.8 ft. `[35.0 m]`
Total length:	467.9 ft. `[142.6 m]`
Roadway width between curbs:	40.0 ft. `[12.2 m]`
Deck width edge-to-edge:	42.7 ft. `[13.0 m]`
Vertical clearance below bridge:	23.0 ft. `[7.0 m]`
Skew angle:	5°
Owner:	State Highway Agency `[01]`
Year built:	1972
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:	4
Main spans material:	Steel continuous `[4]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Bituminous `[6]`

Good/Fair/Poor Condition:	Poor
Status:	Open, no restriction `[A]`
Average daily traffic:	23,500 `[as of 2011]`
Truck traffic:	4% of total traffic
Deck condition:	Poor `[4 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:	Meets minimum tolerable limits to be left in place as is `[4]`
Underclearances appraisal:	Better than present minimum criteria `[7]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Sufficiency rating:	73.5

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
December 2018	Poor	Poor	Satisfactory	Good	23500	73.5
December 2016	Fair	Fair	Satisfactory	Good	23500	75.5
December 2014	Fair	Satisfactory	Good	Good	23500	77.5
January 2013	Fair	Satisfactory	Good	Good	25200	77.4
November 2010	Fair	Satisfactory	Good	Good	25200	77.4
January 2009	Good	Good	Good	Good	25200	76.4
January 2007	Good	Good	Good	Good	26550	76.4
April 2005	Good	Good	Good	Good	28079	76.3
January 2003	Good	Good	Good	Good	25469	76.4
December 2000	Good	Good	Good	Good	22350	75.1
December 1998	Fair	Good	Good	Satisfactory	22350	75.1
March 1997	Fair	Good	Good	Satisfactory	16200	75.8
December 1994	Fair	Good	Good	Satisfactory	16200	72.9
November 1992	Fair	Good	Good	Fair	15100	65.2
January 1991	Fair	Good	Very Good	Fair	17900	86.5

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.	2,250	1,828	418	4	0
Steel Protective Coating	sq. ft.	2,250	1,828	0	0	422
Deck
Reinforced Concrete Deck	sq. ft.	19,882	16,437	2,313	1,132	0
Wearing Surfaces	sq. ft.	18,712	14,832	3,880	0	0
Substructure
Reinforced Concrete Pier Wall	linear ft.	126	124	1	1	0
Reinforced Concrete Abutment	linear ft.	86	61	25	0	0
Joints
Strip Seal Joint	linear ft.	80	0	80	0	0
Bearings
Movable Bearing	each	10	8	2	0	0
Steel Protective Coating	sq. ft.	10	0	0	0	10
Fixed Bearing	each	15	15	0	0	0
Steel Protective Coating	sq. ft.	15	0	15	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	936	936	0	0	0
Steel Protective Coating	sq. ft.	936	936	0	0	0