US Bridges

I25 NB Off Ramp over Smith Creek

Good

El Paso County, Colorado · Just S of Northgate Blvd · Structure no. H-17-DO

Built
2022
3 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
15,000
2021 count
Owner
State
State Highway Agency

About this bridge

I25 NB Off Ramp over Smith Creek is a concrete culvert carrying I25 NB Off Ramp over Smith Creek in El Paso 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 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 15,000 vehicles a day, roughly 10% of them trucks, projected to reach 24,075 by 2041. The structure is 23 ft (6.9 m) long and 85 ft wide.

CarriesI25 NB Off Ramp
CrossesSmith Creek
LocationJust S of Northgate Blvd
RouteInterstate 25A
Coordinates39.02466, -104.83052
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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating106.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length23 ft (6.9 m)
Longest span11 ft (3.3 m)
Deck width85 ft (25.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2021)
Projected traffic24,075 by 2041
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 NB Off Ramp over Smith Creek built?

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

What condition is I25 NB Off Ramp over Smith Creek 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 February 2025.

How much traffic does I25 NB Off Ramp over Smith Creek carry?

About 15,000 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is I25 NB Off Ramp over Smith Creek?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.3 m) and a deck 85 ft wide.

Who owns I25 NB Off Ramp over Smith Creek?

It is owned by the State Highway Agency.