US Bridges

Mesa Grande RD over Scholder Creek

Good

San Diego County, California · 2.6 MI S/O SR 76 · Structure no. 57C0362

Built
1943
82 years old
Condition
Good
inspected December 2024
Type
Slab
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
129
2022 count
Owner
County
County Highway Agency

About this bridge

Mesa Grande RD over Scholder Creek is a concrete continuous slab carrying Mesa Grande RD over Scholder Creek in San Diego County, California. It was built in 1943, so it is 82 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 129 vehicles a day, roughly 2% of them trucks, projected to reach 140 by 2044. The structure is 30 ft (9.1 m) long and 21 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMesa Grande RD
CrossesScholder Creek
Location2.6 MI S/O SR 76
RouteCounty Highway 0
Coordinates33.19899, -116.75866
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
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
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width21 ft (6.3 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic129 (2022)
Projected traffic140 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Mesa Grande RD over Scholder Creek built?

It was built in 1943, making it 82 years old in 2025.

What condition is Mesa Grande RD over Scholder Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Mesa Grande RD over Scholder Creek carry?

About 129 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Mesa Grande RD over Scholder Creek?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m) and a deck 21 ft wide.

Who owns Mesa Grande RD over Scholder Creek?

It is owned by the County Highway Agency.