US Bridges

Las Posas Rd. over Las Posas Creek

Fair

San Diego County, California · 275 Ft N/O Via Artista · Structure no. 57C0779

Built
2003
22 years old
Condition
Fair
inspected March 2023
Type
Arch - Deck
Steel
Length
161 ft
1 main span
Daily traffic
1,200
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Las Posas Rd. over Las Posas Creek is a steel arch - deck carrying Las Posas Rd. over Las Posas Creek in San Diego County, California. It was built in 2003, so it is 22 years old, younger than the California average of 54.8 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 1,200 vehicles a day, roughly 2% of them trucks, projected to reach 3,500 by 2045. The structure is 161 ft (49 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLas Posas Rd.
CrossesLas Posas Creek
Location275 Ft N/O Via Artista
RouteCity Street 0
Coordinates33.16692, -117.18804
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length161 ft (49 m)
Longest span161 ft (49 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2023)
Projected traffic3,500 by 2045
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Las Posas Rd. over Las Posas Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Las Posas Rd. over Las Posas Creek 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 March 2023.

How much traffic does Las Posas Rd. over Las Posas Creek carry?

About 1,200 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Las Posas Rd. over Las Posas Creek?

The structure is 161 ft (49 m) long with a longest span of 161 ft (49 m).

Who owns Las Posas Rd. over Las Posas Creek?

It is owned by the City or Municipal Highway Agency.