US Bridges

SH 145 Ml over Leopard Creek

Good

San Miguel County, Colorado · JCT SH 62 - Placerville · Structure no. L-04-H

Built
2013
12 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
89 ft
1 main span
Daily traffic
4,700
2020 count
Owner
State
State Highway Agency

About this bridge

SH 145 Ml over Leopard Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 145 Ml over Leopard Creek in San Miguel County, Colorado. It was built in 2013, so it is 12 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 4,700 vehicles a day, roughly 8% of them trucks, projected to reach 5,405 by 2040. The structure is 89 ft (27 m) long and 57 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 145 Ml
CrossesLeopard Creek
LocationJCT SH 62 - Placerville
RouteState Highway 145A
Coordinates38.02019, -108.06077
Functional classRural Principal Arterial - Other

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.5 US tons
Inventory rating32 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length89 ft (27 m)
Longest span85 ft (25.9 m)
Deck width57 ft (17.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2020)
Projected traffic5,405 by 2040
Trucks8%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$565,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 145 Ml over Leopard Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is SH 145 Ml over Leopard Creek 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 December 2023.

How much traffic does SH 145 Ml over Leopard Creek carry?

About 4,700 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is SH 145 Ml over Leopard Creek?

The structure is 89 ft (27 m) long with a longest span of 85 ft (25.9 m) and a deck 57 ft wide.

Who owns SH 145 Ml over Leopard Creek?

It is owned by the State Highway Agency.