US Bridges

US 36 Ml over East Bijou Creek

Poor

Adams County, Colorado · 7.1 MI E of Byers · Structure no. F-20-D

Built
1966
59 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
565 ft
6 main spans
Daily traffic
1,100
2020 count
Owner
State
State Highway Agency

About this bridge

US 36 Ml over East Bijou Creek is a steel continuous stringer/multi-beam or girder carrying US 36 Ml over East Bijou Creek in Adams County, Colorado. It was built in 1966, so it is 59 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,100 vehicles a day, roughly 29% of them trucks, projected to reach 1,419 by 2040. The structure is 565 ft (172.2 m) long and 34 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesUS 36 Ml
CrossesEast Bijou Creek
Location7.1 MI E of Byers
RouteU.S. Route 36D
Coordinates39.73978, -104.10562
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.7 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length565 ft (172.2 m)
Longest span100 ft (30.5 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2020)
Projected traffic1,419 by 2040
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 36 Ml over East Bijou Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is US 36 Ml over East Bijou Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does US 36 Ml over East Bijou Creek carry?

About 1,100 vehicles per day (2020 count), of which roughly 29% are trucks.

How long is US 36 Ml over East Bijou Creek?

The structure is 565 ft (172.2 m) long with a longest span of 100 ft (30.5 m) and a deck 34 ft wide.

Who owns US 36 Ml over East Bijou Creek?

It is owned by the State Highway Agency.