US Bridges

Chambers Road over I 70 Ml

Fair

Adams County, Colorado · 1 MI E of JCT I 225 · Structure no. E-17-MV

Built
1987
38 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
232 ft
2 main spans
Daily traffic
33,165
2024 count
Owner
State
State Highway Agency

About this bridge

Chambers Road over I 70 Ml is a steel continuous stringer/multi-beam or girder carrying Chambers Road over I 70 Ml in Adams County, Colorado. It was built in 1987, so it is 38 years old, younger 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 33,165 vehicles a day, roughly 14% of them trucks, projected to reach 43,114 by 2044. The structure is 232 ft (70.7 m) long and 125 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesChambers Road
CrossesI 70 Ml
Location1 MI E of JCT I 225
RouteCity Street 0
CountyAdams County
StateColorado
Coordinates39.77051, -104.80969
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length232 ft (70.7 m)
Longest span115 ft (35 m)
Deck width125 ft (38.1 m)
Roadway width106 ft (32.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,165 (2024)
Projected traffic43,114 by 2044
Trucks14%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 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 Chambers Road over I 70 Ml built?

It was built in 1987, making it 38 years old in 2025.

What condition is Chambers 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 November 2023.

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

About 33,165 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Chambers Road over I 70 Ml?

The structure is 232 ft (70.7 m) long with a longest span of 115 ft (35 m) and a deck 125 ft wide.

Who owns Chambers Road over I 70 Ml?

It is owned by the State Highway Agency.