US Bridges

US 85 Ml over Sand Creek

Good

Douglas County, Colorado · 2.9 Mi. N. of JCT S.H. 67 · Structure no. G-17-AI

Built
2022
3 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
145 ft
2 main spans
Daily traffic
16,600
2022 count
Owner
State
State Highway Agency

About this bridge

US 85 Ml over Sand Creek is a prestressed concrete continuous box beam or girders - single or spread carrying US 85 Ml over Sand Creek in Douglas County, Colorado. It was built in 2022, so it is 3 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16,600 vehicles a day, roughly 6% of them trucks, projected to reach 38,014 by 2042. The structure is 145 ft (44.2 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 85 Ml
CrossesSand Creek
Location2.9 Mi. N. of JCT S.H. 67
RouteU.S. Route 85B
Coordinates39.47313, -104.98929
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length145 ft (44.2 m)
Longest span71 ft (21.7 m)
Deck width90 ft (27.3 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,600 (2022)
Projected traffic38,014 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 85 Ml over Sand Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is US 85 Ml over Sand Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does US 85 Ml over Sand Creek carry?

About 16,600 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is US 85 Ml over Sand Creek?

The structure is 145 ft (44.2 m) long with a longest span of 71 ft (21.7 m) and a deck 90 ft wide.

Who owns US 85 Ml over Sand Creek?

It is owned by the State Highway Agency.