US Bridges

CR 49 | Rainbow Ro over Trout Creek

Good

Douglas County, Colorado · 0.1 MI E of SH 67 · Structure no. DOU049-00.10A

Built
1992
33 years old
Condition
Good
inspected February 2025
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
155
2020 count
Owner
County
County Highway Agency

About this bridge

CR 49 | Rainbow Ro over Trout Creek is a prestressed concrete slab carrying CR 49 | Rainbow Ro over Trout Creek in Douglas County, Colorado. It was built in 1992, so it is 33 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 155 vehicles a day, projected to reach 208 by 2040. The structure is 37 ft (11.2 m) long and 32 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesCR 49 | Rainbow Ro
CrossesTrout Creek
Location0.1 MI E of SH 67
RouteCounty Highway 0
Coordinates39.1357, -105.10678
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 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 evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating41.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length37 ft (11.2 m)
Longest span35 ft (10.6 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2020)
Projected traffic208 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 49 | Rainbow Ro over Trout Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is CR 49 | Rainbow Ro over Trout 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 February 2025.

How much traffic does CR 49 | Rainbow Ro over Trout Creek carry?

About 155 vehicles per day (2020 count).

How long is CR 49 | Rainbow Ro over Trout Creek?

The structure is 37 ft (11.2 m) long with a longest span of 35 ft (10.6 m) and a deck 32 ft wide.

Who owns CR 49 | Rainbow Ro over Trout Creek?

It is owned by the County Highway Agency.