US Bridges

County Road 87 over Jackson Lake Inlet

Fair

Weld County, Colorado · .7 MI North of CO RD 42.5 · Structure no. WEL087.0_042.5B

Built
2008
17 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
47 ft
1 main span
Daily traffic
247
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 87 over Jackson Lake Inlet is a steel stringer/multi-beam or girder carrying County Road 87 over Jackson Lake Inlet in Weld County, Colorado. It was built in 2008, so it is 17 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 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 247 vehicles a day, roughly 72% of them trucks, projected to reach 351 by 2042. The structure is 47 ft (14.2 m) long and 32 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

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CarriesCounty Road 87
CrossesJackson Lake Inlet
Location.7 MI North of CO RD 42.5
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.30794, -104.24486
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length47 ft (14.2 m)
Longest span43 ft (13.2 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic247 (2022)
Projected traffic351 by 2042
Trucks72%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Road 87 over Jackson Lake Inlet built?

It was built in 2008, making it 17 years old in 2025.

What condition is County Road 87 over Jackson Lake Inlet 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 February 2024.

How much traffic does County Road 87 over Jackson Lake Inlet carry?

About 247 vehicles per day (2022 count), of which roughly 72% are trucks.

How long is County Road 87 over Jackson Lake Inlet?

The structure is 47 ft (14.2 m) long with a longest span of 43 ft (13.2 m) and a deck 32 ft wide.

Who owns County Road 87 over Jackson Lake Inlet?

It is owned by the County Highway Agency.