US Bridges

N Argonne Street over Blue Grama Channel

Good

Denver County, Colorado · N of Argonne and 61st · Structure no. D-25-FC-069

Built
2019
6 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
4,047
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Argonne Street over Blue Grama Channel is a concrete culvert carrying N Argonne Street over Blue Grama Channel in Denver County, Colorado. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,047 vehicles a day, projected to reach 4,492 by 2042. The structure is 31 ft (9.3 m) long and 126 ft wide.

CarriesN Argonne Street
CrossesBlue Grama Channel
LocationN of Argonne and 61st
RouteCity Street 0
Coordinates39.80822, -104.76906
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length31 ft (9.3 m)
Longest span14 ft (4.3 m)
Deck width126 ft (38.4 m)
Roadway width51 ft (15.4 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 N Argonne Street over Blue Grama Channel built?

It was built in 2019, making it 6 years old in 2025.

What condition is N Argonne Street over Blue Grama Channel 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 November 2024.

How much traffic does N Argonne Street over Blue Grama Channel carry?

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

How long is N Argonne Street over Blue Grama Channel?

The structure is 31 ft (9.3 m) long with a longest span of 14 ft (4.3 m) and a deck 126 ft wide.

Who owns N Argonne Street over Blue Grama Channel?

It is owned by the City or Municipal Highway Agency.