US Bridges

SH 470 Ml Ebnd over Acres Green Drive

Fair

Douglas County, Colorado · 3.5 M E of JCT SH 177 · Structure no. F-17-HN

Built
1984
41 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
140 ft
2 main spans
Daily traffic
47,500
2020 count
Owner
State
State Highway Agency

About this bridge

SH 470 Ml Ebnd over Acres Green Drive is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 470 Ml Ebnd over Acres Green Drive in Douglas County, Colorado. It was built in 1984, so it is 41 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 47,500 vehicles a day, roughly 2% of them trucks, projected to reach 63,175 by 2040. The structure is 140 ft (42.8 m) long and 89 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSH 470 Ml Ebnd
CrossesAcres Green Drive
Location3.5 M E of JCT SH 177
RouteState Highway 470A
Coordinates39.56397, -104.89724
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length140 ft (42.8 m)
Longest span68 ft (20.7 m)
Deck width89 ft (27.1 m)
Roadway width86 ft (26.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,500 (2020)
Projected traffic63,175 by 2040
Trucks2%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 Acres Green Drive built?

It was built in 1984, making it 41 years old in 2025.

What condition is SH 470 Ml Ebnd over Acres Green Drive 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 December 2023.

How much traffic does SH 470 Ml Ebnd over Acres Green Drive carry?

About 47,500 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 470 Ml Ebnd over Acres Green Drive?

The structure is 140 ft (42.8 m) long with a longest span of 68 ft (20.7 m) and a deck 89 ft wide.

Who owns SH 470 Ml Ebnd over Acres Green Drive?

It is owned by the State Highway Agency.