US Bridges

Glen Helen Parkway over Lytle Creek

Fair

San Bernardino County, California · 0.3 MI NE Lytle Creek RD · Structure no. 54C0779

Built
2006
19 years old
Condition
Fair
inspected July 2023
Type
Arch - Deck
Concrete
Length
40 ft
1 main span
Daily traffic
2,000
2018 count
Owner
County
County Highway Agency

About this bridge

Glen Helen Parkway over Lytle Creek is a concrete arch - deck carrying Glen Helen Parkway over Lytle Creek in San Bernardino County, California. It was built in 2006, so it is 19 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 2,000 vehicles a day, roughly 4% of them trucks, projected to reach 3,000 by 2040. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 4.3 mi (7 km).

Location

Open in Google Maps
CarriesGlen Helen Parkway
CrossesLytle Creek
Location0.3 MI NE Lytle Creek RD
RouteCounty Highway 0
CountySan Bernardino County
StateCalifornia
Coordinates34.18949, -117.43422
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionJuly 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2018)
Projected traffic3,000 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed4.3 mi (7 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Glen Helen Parkway over Lytle Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Glen Helen Parkway over Lytle 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 July 2023.

How much traffic does Glen Helen Parkway over Lytle Creek carry?

About 2,000 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Glen Helen Parkway over Lytle Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m).

Who owns Glen Helen Parkway over Lytle Creek?

It is owned by the County Highway Agency.