US Bridges

County Road 70 over Morgan Creek

Fair

Routt County, Colorado · 1.4 MI E of CO RD 80 · Structure no. 107007002.00963

Built
1995
30 years old
Condition
Fair
inspected October 2024
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
90
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 70 over Morgan Creek is a concrete frame carrying County Road 70 over Morgan Creek in Routt County, Colorado. It was built in 1995, so it is 30 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 90 vehicles a day, roughly 39% of them trucks, projected to reach 107 by 2042. The structure is 26 ft (7.8 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCounty Road 70
CrossesMorgan Creek
Location1.4 MI E of CO RD 80
RouteCounty Highway 0
CountyRoutt County
StateColorado
Coordinates40.52798, -107.20043
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.8 US tons
Inventory rating28.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span24 ft (7.3 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2023)
Projected traffic107 by 2042
Trucks39%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 70 over Morgan Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is County Road 70 over Morgan 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 October 2024.

How much traffic does County Road 70 over Morgan Creek carry?

About 90 vehicles per day (2023 count), of which roughly 39% are trucks.

How long is County Road 70 over Morgan Creek?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns County Road 70 over Morgan Creek?

It is owned by the County Highway Agency.