US Bridges

SR-29 over I-75 (SR-93)

Good

Collier County, Florida · 21 MI E/O CR951 · Structure no. 030291

Built
1992
33 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
256 ft
2 main spans
Daily traffic
1,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR-29 over I-75 (SR-93) is a prestressed concrete stringer/multi-beam or girder carrying SR-29 over I-75 (SR-93) in Collier County, Florida. It was built in 1992, so it is 33 years old, younger 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 1,500 vehicles a day, roughly 17% of them trucks, projected to reach 2,602 by 2044. The structure is 256 ft (77.9 m) long and 69 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesSR-29
CrossesI-75 (SR-93)
Location21 MI E/O CR951
RouteState Highway 29
CountyCollier County
StateFlorida
Coordinates26.15467, -81.345
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.7 US tons
Inventory rating38.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length256 ft (77.9 m)
Longest span128 ft (39 m)
Deck width69 ft (20.9 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2022)
Projected traffic2,602 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed18.6 mi (30 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-29 over I-75 (SR-93) built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR-29 over I-75 (SR-93) 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 2023.

How much traffic does SR-29 over I-75 (SR-93) carry?

About 1,500 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is SR-29 over I-75 (SR-93)?

The structure is 256 ft (77.9 m) long with a longest span of 128 ft (39 m) and a deck 69 ft wide.

Who owns SR-29 over I-75 (SR-93)?

It is owned by the State Highway Agency.