US Bridges

Tower Road over I 70 Ml

Good

Adams County, Colorado · 1.3 MI N of JCT US 40 · Structure no. E-17-MY

Built
1989
36 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
252 ft
2 main spans
Daily traffic
12,204
2024 count
Owner
State
State Highway Agency

About this bridge

Tower Road over I 70 Ml is a steel continuous stringer/multi-beam or girder carrying Tower Road over I 70 Ml in Adams County, Colorado. It was built in 1989, so it is 36 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 12,204 vehicles a day, roughly 5% of them trucks, projected to reach 15,865 by 2044. The structure is 252 ft (76.8 m) long and 108 ft wide.

CarriesTower Road
CrossesI 70 Ml
Location1.3 MI N of JCT US 40
RouteCounty Highway 0
Coordinates39.75884, -104.77204
Functional classUrban Local

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length252 ft (76.8 m)
Longest span125 ft (38 m)
Deck width108 ft (32.8 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,204 (2024)
Projected traffic15,865 by 2044
Trucks5%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Tower Road over I 70 Ml built?

It was built in 1989, making it 36 years old in 2025.

What condition is Tower Road over I 70 Ml 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 June 2024.

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

About 12,204 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Tower Road over I 70 Ml?

The structure is 252 ft (76.8 m) long with a longest span of 125 ft (38 m) and a deck 108 ft wide.

Who owns Tower Road over I 70 Ml?

It is owned by the State Highway Agency.