US Bridges

SH 470 Ml Ebnd over I 70 Ml

Good

Jefferson County, Colorado · I 70 and SH 470 Intersect · Structure no. F-16-KX

Built
1987
38 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
281 ft
2 main spans
Daily traffic
35,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 470 Ml Ebnd over I 70 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 470 Ml Ebnd over I 70 Ml in Jefferson County, Colorado. It was built in 1987, so it is 38 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 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 35,000 vehicles a day, roughly 2% of them trucks, projected to reach 46,900 by 2040. The structure is 281 ft (85.6 m) long and 62 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 470 Ml Ebnd
CrossesI 70 Ml
LocationI 70 and SH 470 Intersect
RouteU.S. Route 470A
Coordinates39.71224, -105.19485
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating86.8 US tons
Inventory rating13.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length281 ft (85.6 m)
Longest span138 ft (42.1 m)
Deck width62 ft (18.9 m)
Roadway width58 ft (17.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,000 (2020)
Projected traffic46,900 by 2040
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes

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 470 Ml Ebnd over I 70 Ml built?

It was built in 1987, making it 38 years old in 2025.

What condition is SH 470 Ml Ebnd over I 70 Ml 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 January 2024.

How much traffic does SH 470 Ml Ebnd over I 70 Ml carry?

About 35,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 470 Ml Ebnd over I 70 Ml?

The structure is 281 ft (85.6 m) long with a longest span of 138 ft (42.1 m) and a deck 62 ft wide.

Who owns SH 470 Ml Ebnd over I 70 Ml?

It is owned by the State Highway Agency.