US Bridges

G Street over W Cucamonga Crk Channel

Fair

San Bernardino County, California · 50 E Grove Ave · Structure no. 54C0614

Built
1986
39 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
5,912
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

G Street over W Cucamonga Crk Channel is a concrete culvert carrying G Street over W Cucamonga Crk Channel in San Bernardino County, California. It was built in 1986, so it is 39 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 6 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 5,912 vehicles a day, roughly 5% of them trucks, projected to reach 10,050 by 2040. The structure is 28 ft (8.5 m) long and 89 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesG Street
CrossesW Cucamonga Crk Channel
Location50 E Grove Ave
RouteCity Street 0
Coordinates34.07059, -117.62907
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width89 ft (27.1 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,912 (2019)
Projected traffic10,050 by 2040
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was G Street over W Cucamonga Crk Channel built?

It was built in 1986, making it 39 years old in 2025.

What condition is G Street over W Cucamonga Crk Channel 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 April 2023.

How much traffic does G Street over W Cucamonga Crk Channel carry?

About 5,912 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is G Street over W Cucamonga Crk Channel?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m) and a deck 89 ft wide.

Who owns G Street over W Cucamonga Crk Channel?

It is owned by the City or Municipal Highway Agency.