US Bridges

County RD 32.4 over Picketwire Ditch

Poor

Las Animas County, Colorado · 1.2 MI E of I-25 · Structure no. LA324-38-16-133

Built
1970
55 years old, rebuilt 1980
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
164
2022 count
Owner
County
County Highway Agency

About this bridge

County RD 32.4 over Picketwire Ditch is a steel stringer/multi-beam or girder carrying County RD 32.4 over Picketwire Ditch in Las Animas County, Colorado. It was built in 1970 and reconstructed in 1980, so it is 55 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 164 vehicles a day, roughly 2% of them trucks, projected to reach 202 by 2042. The structure is 31 ft (9.5 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty RD 32.4
CrossesPicketwire Ditch
Location1.2 MI E of I-25
RouteCounty Highway 0
Coordinates37.22444, -104.46962
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating28.5 US tons
Inventory rating17.1 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length31 ft (9.5 m)
Longest span29 ft (8.7 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic164 (2022)
Projected traffic202 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$848,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 32.4 over Picketwire Ditch built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1980.

What condition is County RD 32.4 over Picketwire Ditch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does County RD 32.4 over Picketwire Ditch carry?

About 164 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County RD 32.4 over Picketwire Ditch?

The structure is 31 ft (9.5 m) long with a longest span of 29 ft (8.7 m) and a deck 16 ft wide.

Who owns County RD 32.4 over Picketwire Ditch?

It is owned by the County Highway Agency.