US Bridges

120th Avenue over Badger Creek

Fair

Adams County, Colorado · 1.7 MI E of Winview Road · Structure no. ADA120-071.6179

Built
1998
27 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
6
2021 count
Owner
County
County Highway Agency

About this bridge

120th Avenue over Badger Creek is a steel stringer/multi-beam or girder carrying 120th Avenue over Badger Creek in Adams County, Colorado. It was built in 1998, so it is 27 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 6 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 vehicles a day, projected to reach 8 by 2041. The structure is 35 ft (10.8 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
Carries120th Avenue
CrossesBadger Creek
Location1.7 MI E of Winview Road
RouteCounty Highway 0
CountyAdams County
StateColorado
Coordinates39.91538, -103.71139
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.2 US tons
Inventory rating33 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 (10.1 m)
Deck width28 ft (8.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6 (2021)
Projected traffic8 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 120th Avenue over Badger Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is 120th Avenue over Badger 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 November 2023.

How much traffic does 120th Avenue over Badger Creek carry?

About 6 vehicles per day (2021 count).

How long is 120th Avenue over Badger Creek?

The structure is 35 ft (10.8 m) long with a longest span of 33 ft (10.1 m) and a deck 28 ft wide.

Who owns 120th Avenue over Badger Creek?

It is owned by the County Highway Agency.