US Bridges

County Road 2 over Cunningham Creek

Fair

San Juan County, Colorado · 4.5 MI NE of Silverton · Structure no. SJN02-02.1A

Built
1989
36 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
997
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 2 over Cunningham Creek is a prestressed concrete tee beam carrying County Road 2 over Cunningham Creek in San Juan County, Colorado. It was built in 1989, so it is 36 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 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 997 vehicles a day, roughly 2% of them trucks, projected to reach 1,037 by 2042. The structure is 40 ft (12.2 m) long and 29 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesCounty Road 2
CrossesCunningham Creek
Location4.5 MI NE of Silverton
RouteCounty Highway 0
CountySan Juan County
StateColorado
Coordinates37.83553, -107.59533
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
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 alignment6: Equal to present minimum criteria
Operating rating74.8 US tons
Inventory rating44.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic997 (2022)
Projected traffic1,037 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 County Road 2 over Cunningham Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is County Road 2 over Cunningham 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 County Road 2 over Cunningham Creek carry?

About 997 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 2 over Cunningham Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 29 ft wide.

Who owns County Road 2 over Cunningham Creek?

It is owned by the County Highway Agency.