US Bridges

CR T60/USFS RD 638 over Deep Creek

Fair

San Miguel County, Colorado · 2 MI NE of SH 145 · Structure no. SMGT60-3.9-26A

Built
2005
20 years old
Condition
Fair
inspected June 2024
Type
Slab
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
171
2022 count
Owner
County
County Highway Agency

About this bridge

CR T60/USFS RD 638 over Deep Creek is a prestressed concrete slab carrying CR T60/USFS RD 638 over Deep Creek in San Miguel 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 171 vehicles a day, roughly 2% of them trucks, projected to reach 194 by 2042. The structure is 25 ft (7.6 m) long and 72 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCR T60/USFS RD 638
CrossesDeep Creek
Location2 MI NE of SH 145
RouteCounty Highway 0
Coordinates37.97347, -107.90605
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating108.1 US tons
Inventory rating64.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (6.9 m)
Deck width72 ft (21.8 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic171 (2022)
Projected traffic194 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR T60/USFS RD 638 over Deep Creek built?

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

What condition is CR T60/USFS RD 638 over Deep 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 June 2024.

How much traffic does CR T60/USFS RD 638 over Deep Creek carry?

About 171 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is CR T60/USFS RD 638 over Deep Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (6.9 m) and a deck 72 ft wide.

Who owns CR T60/USFS RD 638 over Deep Creek?

It is owned by the County Highway Agency.