US Bridges

I25 Service Road over Channel Md-B SR

Good

Weld County, Colorado · NE Corner of Dacono Inter · Structure no. D-17-DT

Built
2000
25 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
5,338
2023 count
Owner
State
State Highway Agency

About this bridge

I25 Service Road over Channel Md-B SR is a concrete culvert carrying I25 Service Road over Channel Md-B SR in Weld County, Colorado. It was built in 2000, so it is 25 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 5,338 vehicles a day, roughly 9% of them trucks, projected to reach 7,580 by 2042. The structure is 26 ft (7.8 m) long and 239 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesI25 Service Road
CrossesChannel Md-B SR
LocationNE Corner of Dacono Inter
RouteInterstate 25A
Coordinates40.09175, -104.97934
Functional classUrban Principal Arterial - Interstate

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.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length26 ft (7.8 m)
Longest span8 ft (2.4 m)
Deck width239 ft (72.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,338 (2023)
Projected traffic7,580 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I25 Service Road over Channel Md-B SR built?

It was built in 2000, making it 25 years old in 2025.

What condition is I25 Service Road over Channel Md-B SR 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 March 2023.

How much traffic does I25 Service Road over Channel Md-B SR carry?

About 5,338 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I25 Service Road over Channel Md-B SR?

The structure is 26 ft (7.8 m) long with a longest span of 8 ft (2.4 m) and a deck 239 ft wide.

Who owns I25 Service Road over Channel Md-B SR?

It is owned by the State Highway Agency.