US Bridges

Biscay Street over Local Drainage

Good

Adams County, Colorado · Just N of 104th Avenue · Structure no. COMC-25-0.2-01

Built
2008
17 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
85 ft
2 main spans
Daily traffic
10
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Biscay Street over Local Drainage is a concrete continuous slab carrying Biscay Street over Local Drainage in Adams County, Colorado. It was built in 2008, so it is 17 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 13 by 2041. The structure is 85 ft (25.9 m) long and 97 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBiscay Street
CrossesLocal Drainage
LocationJust N of 104th Avenue
RouteCity Street 0
Coordinates39.88586, -104.76778
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68.2 US tons
Inventory rating52.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length85 ft (25.9 m)
Longest span38 ft (11.7 m)
Deck width97 ft (29.6 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2021)
Projected traffic13 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 Biscay Street over Local Drainage built?

It was built in 2008, making it 17 years old in 2025.

What condition is Biscay 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 December 2023.

How much traffic does Biscay Street over Local Drainage carry?

About 10 vehicles per day (2021 count).

How long is Biscay Street over Local Drainage?

The structure is 85 ft (25.9 m) long with a longest span of 38 ft (11.7 m) and a deck 97 ft wide.

Who owns Biscay Street over Local Drainage?

It is owned by the City or Municipal Highway Agency.