US Bridges

Powhaton Road over I 70 Ml

Fair

Arapahoe County, Colorado · 2.7 MI E of JCT US 40 · Structure no. F-18-AX

Built
1976
49 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
201 ft
2 main spans
Daily traffic
4,695
2024 count
Owner
State
State Highway Agency

About this bridge

Powhaton Road over I 70 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying Powhaton Road over I 70 Ml in Arapahoe County, Colorado. It was built in 1976, so it is 49 years old, older 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 5 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 4,695 vehicles a day, roughly 20% of them trucks, projected to reach 6,103 by 2044. The structure is 201 ft (61.3 m) long and 46 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesPowhaton Road
CrossesI 70 Ml
Location2.7 MI E of JCT US 40
RouteCounty Highway 0
CountyArapahoe County
StateColorado
Coordinates39.7398, -104.67822
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.6 US tons
Inventory rating33.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length201 ft (61.3 m)
Longest span98 ft (30 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,695 (2024)
Projected traffic6,103 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

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 Powhaton Road over I 70 Ml built?

It was built in 1976, making it 49 years old in 2025.

What condition is Powhaton Road over I 70 Ml 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 June 2023.

How much traffic does Powhaton Road over I 70 Ml carry?

About 4,695 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Powhaton Road over I 70 Ml?

The structure is 201 ft (61.3 m) long with a longest span of 98 ft (30 m) and a deck 46 ft wide.

Who owns Powhaton Road over I 70 Ml?

It is owned by the State Highway Agency.