US Bridges

N. Millbrook Ave over Mill Ditch

Fair

Fresno County, California · At Mckinley Ave · Structure no. 42C0611

Built
1997
28 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
54 ft
5 main spans
Daily traffic
5,304
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

N. Millbrook Ave over Mill Ditch is a concrete continuous culvert carrying N. Millbrook Ave over Mill Ditch in Fresno County, California. It was built in 1997, so it is 28 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 5,304 vehicles a day, roughly 2% of them trucks, projected to reach 7,134 by 2043. The structure is 54 ft (16.5 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesN. Millbrook Ave
CrossesMill Ditch
LocationAt Mckinley Ave
RouteCity Street 0
CountyFresno County
StateCalifornia
Coordinates36.76468, -119.76344
Functional classUrban 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
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal 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 Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span10 ft (3 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,304 (2006)
Projected traffic7,134 by 2043
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 N. Millbrook Ave over Mill Ditch built?

It was built in 1997, making it 28 years old in 2025.

What condition is N. Millbrook Ave over Mill Ditch 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 January 2025.

How much traffic does N. Millbrook Ave over Mill Ditch carry?

About 5,304 vehicles per day (2006 count), of which roughly 2% are trucks.

How long is N. Millbrook Ave over Mill Ditch?

The structure is 54 ft (16.5 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns N. Millbrook Ave over Mill Ditch?

It is owned by the City or Municipal Highway Agency.