US Bridges

Ruegger RD over Alamo River

Poor

Imperial County, California · 1.5 MI W/O SR 111 · Structure no. 58C0145

Built
1967
58 years old
Condition
Poor
inspected December 2023
Type
Slab
Concrete Continuous
Length
100 ft
4 main spans
Daily traffic
590
2023 count
Owner
County
County Highway Agency

About this bridge

Ruegger RD over Alamo River is a concrete continuous slab carrying Ruegger RD over Alamo River in Imperial County, California. It was built in 1967, so it is 58 years old, older 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 590 vehicles a day, roughly 1% of them trucks, projected to reach 747 by 2045. The structure is 100 ft (30.5 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRuegger RD
CrossesAlamo River
Location1.5 MI W/O SR 111
RouteCounty Highway 0
CountyImperial County
StateCalifornia
Coordinates33.1012, -115.54042
Functional classRural Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length100 ft (30.5 m)
Longest span28 ft (8.5 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2023)
Projected traffic747 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$498,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ruegger RD over Alamo River built?

It was built in 1967, making it 58 years old in 2025.

What condition is Ruegger RD over Alamo River 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 December 2023.

How much traffic does Ruegger RD over Alamo River carry?

About 590 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Ruegger RD over Alamo River?

The structure is 100 ft (30.5 m) long with a longest span of 28 ft (8.5 m) and a deck 33 ft wide.

Who owns Ruegger RD over Alamo River?

It is owned by the County Highway Agency.