US Bridges

SH 103 Ml over I 70 Ml

Good

Clear Creek County, Colorado · In Idaho Springs · Structure no. F-14-AA

Built
2015
10 years old
Condition
Good
inspected August 2023
Type
Other
Other
Length
198 ft
2 main spans
Daily traffic
2,300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 103 Ml over I 70 Ml is a other other carrying SH 103 Ml over I 70 Ml in Clear Creek County, Colorado. It was built in 2015, so it is 10 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 2,300 vehicles a day, roughly 2% of them trucks, projected to reach 3,013 by 2040. The structure is 198 ft (60.2 m) long and 61 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSH 103 Ml
CrossesI 70 Ml
LocationIn Idaho Springs
RouteState Highway 103A
CountyClear Creek County
StateColorado
Coordinates39.74067, -105.52023
Functional classRural Major Collector

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeOther
MaterialOther
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length198 ft (60.2 m)
Longest span96 ft (29.3 m)
Deck width61 ft (18.5 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2020)
Projected traffic3,013 by 2040
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$406,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 103 Ml over I 70 Ml built?

It was built in 2015, making it 10 years old in 2025.

What condition is SH 103 Ml 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 August 2023.

How much traffic does SH 103 Ml over I 70 Ml carry?

About 2,300 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 103 Ml over I 70 Ml?

The structure is 198 ft (60.2 m) long with a longest span of 96 ft (29.3 m) and a deck 61 ft wide.

Who owns SH 103 Ml over I 70 Ml?

It is owned by the State Highway Agency.