US Bridges

US-1 (SR-5) SB over Drainage Ditch

Good

Martin County, Florida · N of Roosevelt Bridge · Structure no. 890004

Built
1935
90 years old, rebuilt 1987
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
25,250
2018 count
Owner
State
State Highway Agency

About this bridge

US-1 (SR-5) SB over Drainage Ditch is a concrete culvert carrying US-1 (SR-5) SB over Drainage Ditch in Martin County, Florida. It was built in 1935 and reconstructed in 1987, so it is 90 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.

It carries about 25,250 vehicles a day, roughly 4% of them trucks, projected to reach 43,809 by 2040. The structure is 36 ft (11 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS-1 (SR-5) SB
CrossesDrainage Ditch
LocationN of Roosevelt Bridge
RouteU.S. Route 1
StateFlorida
Coordinates27.21953, -80.26275
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.2 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length36 ft (11 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,250 (2018)
Projected traffic43,809 by 2040
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-1 (SR-5) SB over Drainage Ditch built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1987.

What condition is US-1 (SR-5) SB over Drainage Ditch 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 December 2024.

How much traffic does US-1 (SR-5) SB over Drainage Ditch carry?

About 25,250 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is US-1 (SR-5) SB over Drainage Ditch?

The structure is 36 ft (11 m) long with a longest span of 12 ft (3.7 m).

Who owns US-1 (SR-5) SB over Drainage Ditch?

It is owned by the State Highway Agency.