US Bridges

County Road 806 over Rio Grande River

Fair

Mineral County, Colorado · 2.2 MI S of Creede · Structure no. MIN 806-0.8-4A

Built
1997
28 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
172 ft
3 main spans
Daily traffic
869
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 806 over Rio Grande River is a steel continuous stringer/multi-beam or girder carrying County Road 806 over Rio Grande River in Mineral County, Colorado. It was built in 1997, so it is 28 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 869 vehicles a day, roughly 2% of them trucks, projected to reach 1,060 by 2042. The structure is 172 ft (52.4 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road 806
CrossesRio Grande River
Location2.2 MI S of Creede
RouteCounty Highway 0
CountyMineral County
StateColorado
Coordinates37.81688, -106.91472
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66.6 US tons
Inventory rating50.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length172 ft (52.4 m)
Longest span65 ft (19.7 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic869 (2022)
Projected traffic1,060 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 806 over Rio Grande River built?

It was built in 1997, making it 28 years old in 2025.

What condition is County Road 806 over Rio Grande River 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 October 2024.

How much traffic does County Road 806 over Rio Grande River carry?

About 869 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 806 over Rio Grande River?

The structure is 172 ft (52.4 m) long with a longest span of 65 ft (19.7 m) and a deck 31 ft wide.

Who owns County Road 806 over Rio Grande River?

It is owned by the County Highway Agency.