SH 121 Ml over Arvada Channel

Fair Condition44 years old58,000 vehicles/day

Location

State	Colorado
County	Jefferson
Location	0.1 Mi. N. Of I 76
Carries	SH 121 Ml
Crosses	Arvada Channel
Coordinates	39.78930, -105.08115

Condition Ratings

Overall Condition	Fair
Channel/Waterway	7 (Good)
Culvert	6 (Satisfactory)
Scour Critical	8 — Stable, low risk

Physical Characteristics

Material	Concrete
Design	Culvert
Total Length	24.9 ft (7.6 m)
Max Span	12.1 ft (3.7 m)
Deck Width	155.8 ft (47.5 m)
Deck Area	361 sq m
Main Spans	2
Year Built	1982

Traffic

Avg Daily Traffic	58,000 (2020)
Truck Traffic	2%
Lanes On Bridge	7

Inspection & Ownership

Last Inspection	125
Inspection Frequency	Every 24 months
Owner	State Highway Agency
Historical Significance	Bridge is not eligible for the National Register
Structure Number	E-16-KQ

Nearby Bridges

I 70 Ml over SH 121 Ml 0.3 mi Fair Rmp To EB I70/i76 over I 70 Ml SH 121 R 0.3 mi Fair NB Ramp To I70/i76 over Clear Creek R 0.3 mi Fair SH 121 Ml over Clear Creek 0.4 mi Fair Ramp To I 76 Ebnd over I 70 Ml Ebnd 0.4 mi Fair Ramp To I 70 Ebnd over Clear Creek Bp R 0.4 mi Fair I 70 Ml Ebnd over Clear Creek 0.4 mi Good I 76 Ml Ebnd over I 70 Ml Wbnd 0.5 mi Poor I 70 Ml Wbnd over Clear Creek 0.5 mi Good I 76 Ml Wbnd over Ramp To SH 121 Ml 0.5 mi Poor