US Bridges

E-470 NB over Piney Creek

Fair

Arapahoe County, Colorado · 9.57 MI from I25 · Structure no. E-470-09.57A

Built
1996
29 years old, rebuilt 2016
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
1 main span
Daily traffic
23,244
2018 count
Owner
Toll Authority
Local Toll Authority

About this bridge

E-470 NB over Piney Creek is a prestressed concrete stringer/multi-beam or girder carrying E-470 NB over Piney Creek in Arapahoe County, Colorado. It was built in 1996 and reconstructed in 2016, so it is 29 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 23,244 vehicles a day, roughly 6% of them trucks, projected to reach 41,374 by 2038. The structure is 156 ft (47.7 m) long and 74 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesE-470 NB
CrossesPiney Creek
Location9.57 MI from I25
CountyArapahoe County
StateColorado
Coordinates39.58561, -104.71822
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length156 ft (47.7 m)
Longest span151 ft (46.1 m)
Deck width74 ft (22.7 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,244 (2018)
Projected traffic41,374 by 2038
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
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 E-470 NB over Piney Creek built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2016.

What condition is E-470 NB over Piney 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 July 2024.

How much traffic does E-470 NB over Piney Creek carry?

About 23,244 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is E-470 NB over Piney Creek?

The structure is 156 ft (47.7 m) long with a longest span of 151 ft (46.1 m) and a deck 74 ft wide.

Who owns E-470 NB over Piney Creek?

It is owned by the Local Toll Authority.