US Bridges

I 70 Deertrail Spu over Draw

Fair

Arapahoe County, Colorado · In Deertrail · Structure no. F-20-BP

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
940
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Deertrail Spu over Draw is a concrete culvert carrying I 70 Deertrail Spu over Draw in Arapahoe County, Colorado. It was built in 1965, so it is 60 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 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 940 vehicles a day, roughly 8% of them trucks, projected to reach 1,043 by 2040. The structure is 33 ft (10.1 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesI 70 Deertrail Spu
CrossesDraw
LocationIn Deertrail
RouteState Highway 70N
Coordinates39.61424, -104.04129
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating24.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic940 (2020)
Projected traffic1,043 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 I 70 Deertrail Spu over Draw built?

It was built in 1965, making it 60 years old in 2025.

What condition is I 70 Deertrail Spu over Draw 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 May 2023.

How much traffic does I 70 Deertrail Spu over Draw carry?

About 940 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is I 70 Deertrail Spu over Draw?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns I 70 Deertrail Spu over Draw?

It is owned by the State Highway Agency.