US Bridges

156th Avenue over Big Dry Creek

Fair

Adams County, Colorado · 0.2 MI E of York ST · Structure no. ADA156-05N.1017

Built
1995
30 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
219
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

156th Avenue over Big Dry Creek is a steel stringer/multi-beam or girder carrying 156th Avenue over Big Dry Creek in Adams County, Colorado. It was built in 1995, so it is 30 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 219 vehicles a day, projected to reach 285 by 2041. The structure is 35 ft (10.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries156th Avenue
CrossesBig Dry Creek
Location0.2 MI E of York ST
RouteCity Street 0
CountyAdams County
StateColorado
Coordinates39.97924, -104.95636
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.4 US tons
Inventory rating31.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length35 ft (10.8 m)
Longest span33 ft (10 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic219 (2021)
Projected traffic285 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 156th Avenue over Big Dry Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is 156th Avenue over Big Dry 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 January 2024.

How much traffic does 156th Avenue over Big Dry Creek carry?

About 219 vehicles per day (2021 count).

How long is 156th Avenue over Big Dry Creek?

The structure is 35 ft (10.8 m) long with a longest span of 33 ft (10 m) and a deck 28 ft wide.

Who owns 156th Avenue over Big Dry Creek?

It is owned by the City or Municipal Highway Agency.