US Bridges

State Highway 30 over E-470

Good

Arapahoe County, Colorado · 17.58 MI from I25 · Structure no. E-470-17.58C

Built
1997
28 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
349 ft
2 main spans
Daily traffic
19,300
2018 count
Owner
Toll Authority
Local Toll Authority

About this bridge

State Highway 30 over E-470 is a prestressed concrete continuous box beam or girders - multiple carrying State Highway 30 over E-470 in Arapahoe County, Colorado. It was built in 1997, so it is 28 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 19,300 vehicles a day, roughly 10% of them trucks, projected to reach 27,540 by 2025. The structure is 349 ft (106.3 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Highway 30
CrossesE-470
Location17.58 MI from I25
RouteState Highway 30A
Coordinates39.69986, -104.72605
Functional classUrban Minor Arterial

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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length349 ft (106.3 m)
Longest span176 ft (53.5 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,300 (2018)
Projected traffic27,540 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 State Highway 30 over E-470 built?

It was built in 1997, making it 28 years old in 2025.

What condition is State Highway 30 over E-470 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 State Highway 30 over E-470 carry?

About 19,300 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is State Highway 30 over E-470?

The structure is 349 ft (106.3 m) long with a longest span of 176 ft (53.5 m) and a deck 46 ft wide.

Who owns State Highway 30 over E-470?

It is owned by the Local Toll Authority.