US Bridges

SH 14 Ml over Grizzly Creek

Fair

Jackson County, Colorado · 8.6 Miles West JCT SH 125 · Structure no. B-11-G

Built
1949
76 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
85 ft
1 main span
Daily traffic
1,300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 14 Ml over Grizzly Creek is a steel stringer/multi-beam or girder carrying SH 14 Ml over Grizzly Creek in Jackson County, Colorado. It was built in 1949, so it is 76 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 5 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 1,300 vehicles a day, roughly 14% of them trucks, projected to reach 1,833 by 2040. The structure is 85 ft (25.9 m) long and 29 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSH 14 Ml
CrossesGrizzly Creek
Location8.6 Miles West JCT SH 125
RouteState Highway 14A
Coordinates40.63574, -106.3952
Functional classRural Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span81 ft (24.8 m)
Deck width29 ft (8.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2020)
Projected traffic1,833 by 2040
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 14 Ml over Grizzly Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is SH 14 Ml over Grizzly Creek 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 September 2024.

How much traffic does SH 14 Ml over Grizzly Creek carry?

About 1,300 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is SH 14 Ml over Grizzly Creek?

The structure is 85 ft (25.9 m) long with a longest span of 81 ft (24.8 m) and a deck 29 ft wide.

Who owns SH 14 Ml over Grizzly Creek?

It is owned by the State Highway Agency.