US Bridges

SH 86 Ml over I 70 Ml

Fair

Elbert County, Colorado · 8 MI W of Limon · Structure no. G-21-T

Built
1972
53 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
220 ft
2 main spans
Daily traffic
880
2020 count
Owner
State
State Highway Agency

About this bridge

SH 86 Ml over I 70 Ml is a steel continuous stringer/multi-beam or girder carrying SH 86 Ml over I 70 Ml in Elbert County, Colorado. It was built in 1972, so it is 53 years old, older 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 880 vehicles a day, roughly 14% of them trucks, projected to reach 1,197 by 2040. The structure is 220 ft (67.1 m) long and 34 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSH 86 Ml
CrossesI 70 Ml
Location8 MI W of Limon
RouteState Highway 86A
Coordinates39.31206, -103.82541
Functional classRural Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.4 US tons
Inventory rating40.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length220 ft (67.1 m)
Longest span108 ft (32.9 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic880 (2020)
Projected traffic1,197 by 2040
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.8 mi (11 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 SH 86 Ml over I 70 Ml built?

It was built in 1972, making it 53 years old in 2025.

What condition is SH 86 Ml over I 70 Ml 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 2023.

How much traffic does SH 86 Ml over I 70 Ml carry?

About 880 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is SH 86 Ml over I 70 Ml?

The structure is 220 ft (67.1 m) long with a longest span of 108 ft (32.9 m) and a deck 34 ft wide.

Who owns SH 86 Ml over I 70 Ml?

It is owned by the State Highway Agency.