US Bridges

County Road 203 over Hermosa Creek

Good

La Plata County, Colorado · .1 MI W of SH 550 · Structure no. 067020300.2022A

Built
1989
36 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
454
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 203 over Hermosa Creek is a prestressed concrete box beam or girders - single or spread carrying County Road 203 over Hermosa Creek in La Plata 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 454 vehicles a day, roughly 2% of them trucks, projected to reach 536 by 2042. The structure is 63 ft (19.1 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCounty Road 203
CrossesHermosa Creek
Location.1 MI W of SH 550
RouteCounty Highway 0
Coordinates37.41534, -107.83785
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.3 US tons
Inventory rating38.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.1 m)
Longest span60 ft (18.2 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic454 (2022)
Projected traffic536 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 203 over Hermosa Creek built?

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

What condition is County Road 203 over Hermosa Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does County Road 203 over Hermosa Creek carry?

About 454 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 203 over Hermosa Creek?

The structure is 63 ft (19.1 m) long with a longest span of 60 ft (18.2 m) and a deck 32 ft wide.

Who owns County Road 203 over Hermosa Creek?

It is owned by the County Highway Agency.