US Bridges

SR-70 over D.C.I. Canal

Good

DeSoto County, Florida · 9.4 MI E of SR-31 · Structure no. 040033

Built
1959
66 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
5,600
2024 count
Owner
State
State Highway Agency

About this bridge

SR-70 over D.C.I. Canal is a concrete culvert carrying SR-70 over D.C.I. Canal in DeSoto 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.

It carries about 5,600 vehicles a day, roughly 30% of them trucks, projected to reach 9,716 by 2044. The structure is 27 ft (8.3 m) long. If it were closed, the detour would be 36.7 mi (59 km).

CarriesSR-70
CrossesD.C.I. Canal
Location9.4 MI E of SR-31
RouteState Highway 70
StateFlorida
Coordinates27.20946, -81.67792
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length27 ft (8.3 m)
Longest span9 ft (2.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2024)
Projected traffic9,716 by 2044
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36.7 mi (59 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 SR-70 over D.C.I. Canal built?

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

What condition is SR-70 over D.C.I. Canal 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 May 2024.

How much traffic does SR-70 over D.C.I. Canal carry?

About 5,600 vehicles per day (2024 count), of which roughly 30% are trucks.

How long is SR-70 over D.C.I. Canal?

The structure is 27 ft (8.3 m) long with a longest span of 9 ft (2.6 m).

Who owns SR-70 over D.C.I. Canal?

It is owned by the State Highway Agency.