US Bridges

County Road 39 over I 70 Ml Kyle RR

Good

Lincoln County, Colorado · 2.6 MI E.Of Bovina · Structure no. G-23-AG

Built
1975
50 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
419 ft
3 main spans
Daily traffic
12
2024 count
Owner
State
State Highway Agency

About this bridge

County Road 39 over I 70 Ml Kyle RR is a steel continuous stringer/multi-beam or girder carrying County Road 39 over I 70 Ml Kyle RR in Lincoln County, Colorado. It was built in 1975, so it is 50 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12 vehicles a day, projected to reach 16 by 2044. The structure is 419 ft (127.7 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty Road 39
CrossesI 70 Ml Kyle RR
Location2.6 MI E.Of Bovina
RouteCounty Highway 0
Coordinates39.28078, -103.34195
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.1 US tons
Inventory rating39 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length419 ft (127.7 m)
Longest span155 ft (47.2 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (2024)
Projected traffic16 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 39 over I 70 Ml Kyle RR built?

It was built in 1975, making it 50 years old in 2025.

What condition is County Road 39 over I 70 Ml Kyle RR 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 November 2023.

How much traffic does County Road 39 over I 70 Ml Kyle RR carry?

About 12 vehicles per day (2024 count).

How long is County Road 39 over I 70 Ml Kyle RR?

The structure is 419 ft (127.7 m) long with a longest span of 155 ft (47.2 m) and a deck 36 ft wide.

Who owns County Road 39 over I 70 Ml Kyle RR?

It is owned by the State Highway Agency.