US Bridges

Boulder Avenue over City Creek

Fair

San Bernardino County, California · 0.14 MI S/O Baseline Ave. · Structure no. 54C0753

Built
2013
12 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
385 ft
4 main spans
Daily traffic
24,650
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Boulder Avenue over City Creek is a concrete continuous tee beam carrying Boulder Avenue over City Creek in San Bernardino County, California. It was built in 2013, so it is 12 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 24,650 vehicles a day, roughly 1% of them trucks, projected to reach 61,414 by 2045. The structure is 385 ft (117.3 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBoulder Avenue
CrossesCity Creek
Location0.14 MI S/O Baseline Ave.
RouteCity Street 0
CountySan Bernardino County
StateCalifornia
Coordinates34.11834, -117.19371
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 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 alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length385 ft (117.3 m)
Longest span105 ft (32 m)
Deck width95 ft (29.1 m)
Roadway width80 ft (24.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,650 (2019)
Projected traffic61,414 by 2045
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Boulder Avenue over City Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Boulder Avenue over City 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 November 2024.

How much traffic does Boulder Avenue over City Creek carry?

About 24,650 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Boulder Avenue over City Creek?

The structure is 385 ft (117.3 m) long with a longest span of 105 ft (32 m) and a deck 95 ft wide.

Who owns Boulder Avenue over City Creek?

It is owned by the City or Municipal Highway Agency.