US Bridges

CR 62 (empire Dr) over Coal Creek

Fair

Boulder County, Colorado · 0.7 M E of ST HWY 42 · Structure no. BC-62-2.1-CO

Built
1935
90 years old, rebuilt 1955
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
1,080
2023 count
Owner
County
County Highway Agency

About this bridge

CR 62 (empire Dr) over Coal Creek is a concrete culvert carrying CR 62 (empire Dr) over Coal Creek in Boulder County, Colorado. It was built in 1935 and reconstructed in 1955, so it is 90 years old, older 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 5 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 1,080 vehicles a day, projected to reach 1,296 by 2043. The structure is 34 ft (10.4 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 62 (empire Dr)
CrossesCoal Creek
Location0.7 M E of ST HWY 42
RouteCounty Highway 0
CountyBoulder County
StateColorado
Coordinates39.97622, -105.11671
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span16 ft (5 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,080 (2023)
Projected traffic1,296 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was CR 62 (empire Dr) over Coal Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1955.

What condition is CR 62 (empire Dr) over Coal Creek 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 February 2025.

How much traffic does CR 62 (empire Dr) over Coal Creek carry?

About 1,080 vehicles per day (2023 count).

How long is CR 62 (empire Dr) over Coal Creek?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (5 m) and a deck 32 ft wide.

Who owns CR 62 (empire Dr) over Coal Creek?

It is owned by the County Highway Agency.