US Bridges

Picacho RD over Reservation Main Drain

Poor

Imperial County, California · 0.75 MI S/O Ross RD · Structure no. 58C0085

Built
1974
51 years old
Condition
Poor
inspected October 2023
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
3,000
2021 count
Owner
County
County Highway Agency

About this bridge

Picacho RD over Reservation Main Drain is a concrete continuous slab carrying Picacho RD over Reservation Main Drain in Imperial County, California. It was built in 1974, so it is 51 years old, younger than the California average of 54.8 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 3,000 vehicles a day, roughly 2% of them trucks, projected to reach 3,218 by 2043. The structure is 81 ft (24.7 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPicacho RD
CrossesReservation Main Drain
Location0.75 MI S/O Ross RD
RouteCounty Highway 0
Coordinates32.77081, -114.6162
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.5 US tons
Inventory rating59.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span26 ft (7.9 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2021)
Projected traffic3,218 by 2043
Trucks2%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$414,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Picacho RD over Reservation Main Drain built?

It was built in 1974, making it 51 years old in 2025.

What condition is Picacho RD over Reservation Main Drain 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 October 2023.

How much traffic does Picacho RD over Reservation Main Drain carry?

About 3,000 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Picacho RD over Reservation Main Drain?

The structure is 81 ft (24.7 m) long with a longest span of 26 ft (7.9 m) and a deck 33 ft wide.

Who owns Picacho RD over Reservation Main Drain?

It is owned by the County Highway Agency.