US Bridges

I 25 Service RD over N.Poudre Ditch Sand C SR

Good

Larimer County, Colorado · 11.6 MI North of JCT SH 1 · Structure no. A-17-AY

Built
1967
58 years old
Condition
Good
inspected March 2023
Type
Tee Beam
Concrete
Length
44 ft
1 main span
Daily traffic
822
2023 count
Owner
State
State Highway Agency

About this bridge

I 25 Service RD over N.Poudre Ditch Sand C SR is a concrete tee beam carrying I 25 Service RD over N.Poudre Ditch Sand C SR in Larimer County, Colorado. It was built in 1967, so it is 58 years old, older 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 822 vehicles a day, roughly 14% of them trucks, projected to reach 1,028 by 2042. The structure is 44 ft (13.4 m) long and 37 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesI 25 Service RD
CrossesN.Poudre Ditch Sand C SR
Location11.6 MI North of JCT SH 1
RouteInterstate 25A
Coordinates40.74945, -104.99219
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.7 US tons
Inventory rating26.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic822 (2023)
Projected traffic1,028 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 I 25 Service RD over N.Poudre Ditch Sand C SR built?

It was built in 1967, making it 58 years old in 2025.

What condition is I 25 Service RD over N.Poudre Ditch Sand C 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 I 25 Service RD over N.Poudre Ditch Sand C SR carry?

About 822 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I 25 Service RD over N.Poudre Ditch Sand C SR?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 37 ft wide.

Who owns I 25 Service RD over N.Poudre Ditch Sand C SR?

It is owned by the State Highway Agency.