US Bridges

Castle Pines Pkwy over I 25 Ml

Fair

Douglas County, Colorado · 6.7 MI N Castle Rock Bus. · Structure no. G-17-CT

Built
2005
20 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
248 ft
2 main spans
Daily traffic
17,403
2024 count
Owner
State
State Highway Agency

About this bridge

Castle Pines Pkwy over I 25 Ml is a prestressed concrete stringer/multi-beam or girder carrying Castle Pines Pkwy over I 25 Ml in Douglas County, Colorado. It was built in 2005, so it is 20 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 17,403 vehicles a day, roughly 3% of them trucks, projected to reach 23,320 by 2044. The structure is 248 ft (75.6 m) long and 98 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCastle Pines Pkwy
CrossesI 25 Ml
Location6.7 MI N Castle Rock Bus.
RouteCity Street 0
Coordinates39.47196, -104.87308
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length248 ft (75.6 m)
Longest span125 ft (38.1 m)
Deck width98 ft (29.9 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,403 (2024)
Projected traffic23,320 by 2044
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 Castle Pines Pkwy over I 25 Ml built?

It was built in 2005, making it 20 years old in 2025.

What condition is Castle Pines Pkwy over I 25 Ml in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Castle Pines Pkwy over I 25 Ml carry?

About 17,403 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Castle Pines Pkwy over I 25 Ml?

The structure is 248 ft (75.6 m) long with a longest span of 125 ft (38.1 m) and a deck 98 ft wide.

Who owns Castle Pines Pkwy over I 25 Ml?

It is owned by the State Highway Agency.