US Bridges

Yampa Street over Blue Grama Channel

Fair

Denver County, Colorado · Tower RD & 61st Ave · Structure no. D-25-FC-067

Built
2022
3 years old
Condition
Fair
inspected November 2024
Type
Arch - Deck
Concrete
Length
36 ft
1 main span
Daily traffic
4,047
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Yampa Street over Blue Grama Channel is a concrete arch - deck carrying Yampa Street over Blue Grama Channel in Denver 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 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 4,047 vehicles a day, projected to reach 4,492 by 2042. The structure is 36 ft (11 m) long and 90 ft wide.

CarriesYampa Street
CrossesBlue Grama Channel
LocationTower RD & 61st Ave
RouteCity Street 0
Coordinates39.80853, -104.7743
Functional classUrban 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
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating38.3 US tons
Inventory rating31.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length36 ft (11 m)
Longest span36 ft (11 m)
Deck width90 ft (27.4 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,047 (2022)
Projected traffic4,492 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Yampa Street over Blue Grama Channel built?

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

What condition is Yampa Street over Blue Grama Channel 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 2024.

How much traffic does Yampa Street over Blue Grama Channel carry?

About 4,047 vehicles per day (2022 count).

How long is Yampa Street over Blue Grama Channel?

The structure is 36 ft (11 m) long with a longest span of 36 ft (11 m) and a deck 90 ft wide.

Who owns Yampa Street over Blue Grama Channel?

It is owned by the City or Municipal Highway Agency.