US Bridges

US 285 Ml over Geneva Creek

Fair

Park County, Colorado · In Grant · Structure no. G-14-S

Built
1989
36 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
36 ft
1 main span
Daily traffic
6,400
2020 count
Owner
State
State Highway Agency

About this bridge

US 285 Ml over Geneva Creek is a concrete slab carrying US 285 Ml over Geneva Creek in Park County, Colorado. It was built in 1989, so it is 36 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,400 vehicles a day, roughly 10% of them trucks, projected to reach 10,048 by 2040. The structure is 36 ft (11.1 m) long and 127 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesUS 285 Ml
CrossesGeneva Creek
LocationIn Grant
RouteU.S. Route 285D
CountyPark County
StateColorado
Coordinates39.45983, -105.6636
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.1 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11.1 m)
Longest span36 ft (11.1 m)
Deck width127 ft (38.7 m)
Roadway width125 ft (38.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,400 (2020)
Projected traffic10,048 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 285 Ml over Geneva Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is US 285 Ml over Geneva Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does US 285 Ml over Geneva Creek carry?

About 6,400 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is US 285 Ml over Geneva Creek?

The structure is 36 ft (11.1 m) long with a longest span of 36 ft (11.1 m) and a deck 127 ft wide.

Who owns US 285 Ml over Geneva Creek?

It is owned by the State Highway Agency.