US Bridges

South Fork Rd. over Lytle Creek

Good

San Bernardino County, California · 40 M W/O Lytle Creek Rd. · Structure no. 54C0752

Built
2011
14 years old
Condition
Good
inspected November 2022
Type
Slab
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
25
2013 count
Owner
County
County Highway Agency

About this bridge

South Fork Rd. over Lytle Creek is a prestressed concrete slab carrying South Fork Rd. over Lytle Creek in San Bernardino County, California. It was built in 2011, so it is 14 years old, younger 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 25 vehicles a day, roughly 1% of them trucks, projected to reach 37 by 2044. The structure is 54 ft (16.5 m) long and 36 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSouth Fork Rd.
CrossesLytle Creek
Location40 M W/O Lytle Creek Rd.
RouteCounty Highway 0
Coordinates34.23884, -117.49902
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length54 ft (16.5 m)
Longest span52 ft (15.8 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2013)
Projected traffic37 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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 South Fork Rd. over Lytle Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is South Fork Rd. over Lytle 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 November 2022.

How much traffic does South Fork Rd. over Lytle Creek carry?

About 25 vehicles per day (2013 count), of which roughly 1% are trucks.

How long is South Fork Rd. over Lytle Creek?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.8 m) and a deck 36 ft wide.

Who owns South Fork Rd. over Lytle Creek?

It is owned by the County Highway Agency.