US Bridges

Mac Arthur Blvd over Earman River Canal C-17

GoodPosted for load

Palm Beach County, Florida · 0.1 MI S of Lighthouse DR · Structure no. 937000

Built
1959
66 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete
Length
75 ft
5 main spans
Daily traffic
9,400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mac Arthur Blvd over Earman River Canal C-17 is a concrete slab carrying Mac Arthur Blvd over Earman River Canal C-17 in Palm Beach County, Florida. It was built in 1959, so it is 66 years old, older than the Florida average of 41.3 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. Its operating status is: posted for load restriction.

It carries about 9,400 vehicles a day, roughly 5% of them trucks, projected to reach 16,309 by 2045. The structure is 75 ft (22.9 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMac Arthur Blvd
CrossesEarman River Canal C-17
Location0.1 MI S of Lighthouse DR
RouteCity Street 0
StateFlorida
Coordinates26.81703, -80.08669
Functional classUrban 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38.7 US tons
Inventory rating23.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length75 ft (22.9 m)
Longest span15 ft (4.6 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,400 (2023)
Projected traffic16,309 by 2045
Trucks5%
Lanes on structure2
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 Mac Arthur Blvd over Earman River Canal C-17 built?

It was built in 1959, making it 66 years old in 2025.

What condition is Mac Arthur Blvd over Earman River Canal C-17 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 September 2024.

How much traffic does Mac Arthur Blvd over Earman River Canal C-17 carry?

About 9,400 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Mac Arthur Blvd over Earman River Canal C-17?

The structure is 75 ft (22.9 m) long with a longest span of 15 ft (4.6 m) and a deck 34 ft wide.

Who owns Mac Arthur Blvd over Earman River Canal C-17?

It is owned by the City or Municipal Highway Agency.