US Bridges

RD 28 1/2 over Madera Canal

Fair

Madera County, California · 0.35 MI S Ave 24 · Structure no. 41C0169

Built
1944
81 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
43 ft
2 main spans
Daily traffic
68
2020 count
Owner
County
County Highway Agency

About this bridge

RD 28 1/2 over Madera Canal is a wood or timber stringer/multi-beam or girder carrying RD 28 1/2 over Madera Canal in Madera County, California. It was built in 1944, so it is 81 years old, older 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 68 vehicles a day, projected to reach 104 by 2042. The structure is 43 ft (13.2 m) long and 24 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesRD 28 1/2
CrossesMadera Canal
Location0.35 MI S Ave 24
RouteCounty Highway 0
CountyMadera County
StateCalifornia
Coordinates37.09272, -120.02928
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length43 ft (13.2 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68 (2020)
Projected traffic104 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 28 1/2 over Madera Canal built?

It was built in 1944, making it 81 years old in 2025.

What condition is RD 28 1/2 over Madera Canal 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 2024.

How much traffic does RD 28 1/2 over Madera Canal carry?

About 68 vehicles per day (2020 count).

How long is RD 28 1/2 over Madera Canal?

The structure is 43 ft (13.2 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns RD 28 1/2 over Madera Canal?

It is owned by the County Highway Agency.