US Bridges

Milliken Ave over Mission Blvd.

Good

San Bernardino County, California · 0.45 MI West of I-15 N · Structure no. 54C0774

Built
2016
9 years old
Condition
Good
inspected January 2025
Type
Slab
Prestressed Concrete
Length
284 ft
1 main span
Daily traffic
18,780
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Milliken Ave over Mission Blvd. is a prestressed concrete slab carrying Milliken Ave over Mission Blvd. in San Bernardino County, California. It was built in 2016, so it is 9 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 18,780 vehicles a day, roughly 10% of them trucks, projected to reach 40,943 by 2043. The structure is 284 ft (86.7 m) long and 126 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMilliken Ave
CrossesMission Blvd.
Location0.45 MI West of I-15 N
RouteCity Street 0
CountySan Bernardino County
StateCalifornia
Coordinates34.03208, -117.55829
Functional classUrban 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.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+3 approach)
Design loadGreater than HL 93
Structure length284 ft (86.7 m)
Longest span114 ft (34.7 m)
Deck width126 ft (38.4 m)
Roadway width107 ft (32.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,780 (2017)
Projected traffic40,943 by 2043
Trucks10%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Milliken Ave over Mission Blvd. built?

It was built in 2016, making it 9 years old in 2025.

What condition is Milliken Ave over Mission Blvd. 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 January 2025.

How much traffic does Milliken Ave over Mission Blvd. carry?

About 18,780 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Milliken Ave over Mission Blvd.?

The structure is 284 ft (86.7 m) long with a longest span of 114 ft (34.7 m) and a deck 126 ft wide.

Who owns Milliken Ave over Mission Blvd.?

It is owned by the City or Municipal Highway Agency.