US Bridges

Grant Street over Local Drainage

Good

Adams County, Colorado · Just N of 140th Ave · Structure no. THN-GRT140-LD

Built
2018
7 years old
Condition
Good
inspected January 2024
Type
Arch - Deck
Concrete
Length
40 ft
1 main span
Daily traffic
4,074
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grant Street over Local Drainage is a concrete arch - deck carrying Grant Street over Local Drainage in Adams County, Colorado. It was built in 2018, so it is 7 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 4,074 vehicles a day, projected to reach 5,296 by 2041. The structure is 40 ft (12.2 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGrant Street
CrossesLocal Drainage
LocationJust N of 140th Ave
RouteCity Street 0
Coordinates39.95034, -104.98348
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
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span37 ft (11.4 m)
Deck width90 ft (27.4 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,074 (2021)
Projected traffic5,296 by 2041
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Grant Street over Local Drainage built?

It was built in 2018, making it 7 years old in 2025.

What condition is Grant Street over Local Drainage 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 January 2024.

How much traffic does Grant Street over Local Drainage carry?

About 4,074 vehicles per day (2021 count).

How long is Grant Street over Local Drainage?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.4 m) and a deck 90 ft wide.

Who owns Grant Street over Local Drainage?

It is owned by the City or Municipal Highway Agency.