US Bridges

CR107 (liggett Rd) over I 25 Ml

Poor

Douglas County, Colorado · 0.5 MI N Castle Rock Bus. · Structure no. G-17-AC

Built
1964
61 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
214 ft
4 main spans
Daily traffic
3,395
2024 count
Owner
State
State Highway Agency

About this bridge

CR107 (liggett Rd) over I 25 Ml is a steel stringer/multi-beam or girder carrying CR107 (liggett Rd) over I 25 Ml in Douglas County, Colorado. It was built in 1964, so it is 61 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,395 vehicles a day, roughly 11% of them trucks, projected to reach 4,550 by 2044. The structure is 214 ft (65.3 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR107 (liggett Rd)
CrossesI 25 Ml
Location0.5 MI N Castle Rock Bus.
RouteCounty Highway 0
CountyDouglas County
StateColorado
Coordinates39.38784, -104.86059
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating55 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length214 ft (65.3 m)
Longest span63 ft (19.1 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,395 (2024)
Projected traffic4,550 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR107 (liggett Rd) over I 25 Ml built?

It was built in 1964, making it 61 years old in 2025.

What condition is CR107 (liggett Rd) over I 25 Ml in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does CR107 (liggett Rd) over I 25 Ml carry?

About 3,395 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is CR107 (liggett Rd) over I 25 Ml?

The structure is 214 ft (65.3 m) long with a longest span of 63 ft (19.1 m) and a deck 34 ft wide.

Who owns CR107 (liggett Rd) over I 25 Ml?

It is owned by the State Highway Agency.