US Bridges

E-470 SB over Arapahoe Road

Good

Arapahoe County, Colorado · 9.83 MI from I25 · Structure no. E-470-09.83B

Built
1996
29 years old, rebuilt 2017
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
250 ft
2 main spans
Daily traffic
24,139
2018 count
Owner
Toll Authority
Local Toll Authority

About this bridge

E-470 SB over Arapahoe Road is a prestressed concrete continuous stringer/multi-beam or girder carrying E-470 SB over Arapahoe Road in Arapahoe County, Colorado. It was built in 1996 and reconstructed in 2017, 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 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 24,139 vehicles a day, roughly 6% of them trucks, projected to reach 42,967 by 2038. The structure is 250 ft (76.3 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE-470 SB
CrossesArapahoe Road
Location9.83 MI from I25
Coordinates39.58944, -104.71861
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
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 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckOther
Main spans2
Design loadHS 25 or greater
Structure length250 ft (76.3 m)
Longest span132 ft (40.2 m)
Deck width90 ft (27.3 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,139 (2018)
Projected traffic42,967 by 2038
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
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 SB over Arapahoe Road built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2017.

What condition is E-470 SB over Arapahoe Road 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 July 2024.

How much traffic does E-470 SB over Arapahoe Road carry?

About 24,139 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is E-470 SB over Arapahoe Road?

The structure is 250 ft (76.3 m) long with a longest span of 132 ft (40.2 m) and a deck 90 ft wide.

Who owns E-470 SB over Arapahoe Road?

It is owned by the Local Toll Authority.