US Bridges

York ST NB Ramp over Big Dry Creek

Good

Adams County, Colorado · Big Dry Creek · Structure no. E-470-44.98C

Built
2001
24 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
221 ft
2 main spans
Daily traffic
400
2018 count
Owner
Toll Authority
Local Toll Authority

About this bridge

York ST NB Ramp over Big Dry Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying York ST NB Ramp over Big Dry Creek in Adams County, Colorado. It was built in 2001, so it is 24 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 400 vehicles a day, roughly 6% of them trucks, projected to reach 462 by 2033. The structure is 221 ft (67.5 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesYork ST NB Ramp
CrossesBig Dry Creek
LocationBig Dry Creek
Coordinates39.97727, -104.96172
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating52.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length221 ft (67.5 m)
Longest span107 ft (32.7 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2018)
Projected traffic462 by 2033
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
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 York ST NB Ramp over Big Dry Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is York ST NB Ramp over Big Dry 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 August 2023.

How much traffic does York ST NB Ramp over Big Dry Creek carry?

About 400 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is York ST NB Ramp over Big Dry Creek?

The structure is 221 ft (67.5 m) long with a longest span of 107 ft (32.7 m) and a deck 36 ft wide.

Who owns York ST NB Ramp over Big Dry Creek?

It is owned by the Local Toll Authority.