US Bridges

County Road 13E over Jackson Ditch

Fair

Larimer County, Colorado · 0.2 MI No of CO RD 52C · Structure no. LR13E-0.2-52C

Built
1962
63 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
315
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 13E over Jackson Ditch is a steel stringer/multi-beam or girder carrying County Road 13E over Jackson Ditch in Larimer County, Colorado. It was built in 1962, so it is 63 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 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 315 vehicles a day, roughly 19% of them trucks, projected to reach 393 by 2043. The structure is 45 ft (13.7 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Road 13E
CrossesJackson Ditch
Location0.2 MI No of CO RD 52C
RouteCounty Highway 0
CountyLarimer County
StateColorado
Coordinates40.62947, -105.06408
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.6 US tons
Inventory rating23.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span42 ft (12.8 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic315 (2023)
Projected traffic393 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 13E over Jackson Ditch built?

It was built in 1962, making it 63 years old in 2025.

What condition is County Road 13E over Jackson Ditch 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 March 2025.

How much traffic does County Road 13E over Jackson Ditch carry?

About 315 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is County Road 13E over Jackson Ditch?

The structure is 45 ft (13.7 m) long with a longest span of 42 ft (12.8 m) and a deck 29 ft wide.

Who owns County Road 13E over Jackson Ditch?

It is owned by the County Highway Agency.