US Bridges

County Road 59 over Latham Ditch

Fair

Weld County, Colorado · 0.6 MI N of CO RD 50 · Structure no. WEL059.0-050.0A

Built
1973
52 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
22 ft
1 main span
Daily traffic
116
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 59 over Latham Ditch is a prestressed concrete tee beam carrying County Road 59 over Latham Ditch in Weld County, Colorado. It was built in 1973, so it is 52 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 116 vehicles a day, roughly 33% of them trucks, projected to reach 165 by 2041. The structure is 22 ft (6.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 59
CrossesLatham Ditch
Location0.6 MI N of CO RD 50
RouteCounty Highway 0
Coordinates40.35739, -104.50731
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating40 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic116 (2021)
Projected traffic165 by 2041
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 59 over Latham Ditch built?

It was built in 1973, making it 52 years old in 2025.

What condition is County Road 59 over Latham 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 February 2024.

How much traffic does County Road 59 over Latham Ditch carry?

About 116 vehicles per day (2021 count), of which roughly 33% are trucks.

How long is County Road 59 over Latham Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns County Road 59 over Latham Ditch?

It is owned by the County Highway Agency.