US Bridges

12th Street over Greeley No. 3 Ditch

Fair

Weld County, Colorado · 200 Ft E of 16th Ave · Structure no. GREELEY-0000029

Built
1952
73 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
385
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

12th Street over Greeley No. 3 Ditch is a concrete slab carrying 12th Street over Greeley No. 3 Ditch in Weld County, Colorado. It was built in 1952, so it is 73 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 385 vehicles a day, roughly 7% of them trucks, projected to reach 546 by 2043. The structure is 28 ft (8.5 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries12th Street
CrossesGreeley No. 3 Ditch
Location200 Ft E of 16th Ave
RouteCity Street 0
CountyWeld County
StateColorado
Coordinates40.41998, -104.70509
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionApril 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span22 ft (6.6 m)
Deck width51 ft (15.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic385 (2023)
Projected traffic546 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 12th Street over Greeley No. 3 Ditch built?

It was built in 1952, making it 73 years old in 2025.

What condition is 12th Street over Greeley No. 3 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 April 2024.

How much traffic does 12th Street over Greeley No. 3 Ditch carry?

About 385 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is 12th Street over Greeley No. 3 Ditch?

The structure is 28 ft (8.5 m) long with a longest span of 22 ft (6.6 m) and a deck 51 ft wide.

Who owns 12th Street over Greeley No. 3 Ditch?

It is owned by the City or Municipal Highway Agency.