US Bridges

CR 905A over Steam Boat Creek

Fair

Monroe County, Florida · 1.6 Miles N of CR 905 · Structure no. 904980

Built
1968
57 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
316 ft
6 main spans
Daily traffic
3,182
2024 count
Owner
County
County Highway Agency

About this bridge

CR 905A over Steam Boat Creek is a prestressed concrete stringer/multi-beam or girder carrying CR 905A over Steam Boat Creek in Monroe County, Florida. It was built in 1968, so it is 57 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,182 vehicles a day, roughly 3% of them trucks, projected to reach 4,478 by 2043. The structure is 316 ft (96.3 m) long and 38 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesCR 905A
CrossesSteam Boat Creek
Location1.6 Miles N of CR 905
RouteCounty Highway 905A
CountyMonroe County
StateFlorida
Coordinates25.28378, -80.33025
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.5 US tons
Inventory rating30.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length316 ft (96.3 m)
Longest span53 ft (16.1 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,182 (2024)
Projected traffic4,478 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a toll road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 905A over Steam Boat Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is CR 905A over Steam Boat Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does CR 905A over Steam Boat Creek carry?

About 3,182 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is CR 905A over Steam Boat Creek?

The structure is 316 ft (96.3 m) long with a longest span of 53 ft (16.1 m) and a deck 38 ft wide.

Who owns CR 905A over Steam Boat Creek?

It is owned by the County Highway Agency.