US Bridges

CO RD 15 \ Minturn over SR 99

Good

Madera County, California · 06-MAD-099-28.17 · Structure no. 41 0057

Built
1957
68 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
256 ft
4 main spans
Daily traffic
1,620
1998 count
Owner
State
State Highway Agency

About this bridge

CO RD 15 \ Minturn over SR 99 is a concrete continuous box beam or girders - multiple carrying CO RD 15 \ Minturn over SR 99 in Madera County, California. It was built in 1957, so it is 68 years old, older 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 1,620 vehicles a day, roughly 10% of them trucks, projected to reach 1,326 by 2045. The structure is 256 ft (78 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCO RD 15 \ Minturn
CrossesSR 99
Location06-MAD-099-28.17
RouteCounty Highway 0W350
Coordinates37.14137, -120.27434
Functional classRural Minor Collector

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating44 US tons
Inventory rating34 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length256 ft (78 m)
Longest span97 ft (29.6 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,620 (1998)
Projected traffic1,326 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 CO RD 15 \ Minturn over SR 99 built?

It was built in 1957, making it 68 years old in 2025.

What condition is CO RD 15 \ Minturn over SR 99 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 June 2023.

How much traffic does CO RD 15 \ Minturn over SR 99 carry?

About 1,620 vehicles per day (1998 count), of which roughly 10% are trucks.

How long is CO RD 15 \ Minturn over SR 99?

The structure is 256 ft (78 m) long with a longest span of 97 ft (29.6 m) and a deck 33 ft wide.

Who owns CO RD 15 \ Minturn over SR 99?

It is owned by the State Highway Agency.