US Bridges

Penton Road over Mare Branch

FairPosted for load

Santa Rosa County, Florida · 0.5 MI South of CR 178 · Structure no. 584156

Built
1993
32 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
49 ft
4 main spans
Daily traffic
150
2024 count
Owner
County
County Highway Agency

About this bridge

Penton Road over Mare Branch is a wood or timber stringer/multi-beam or girder carrying Penton Road over Mare Branch in Santa Rosa County, Florida. It was built in 1993, so it is 32 years old, younger 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, projected to reach 261 by 2046. The structure is 49 ft (14.8 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPenton Road
CrossesMare Branch
Location0.5 MI South of CR 178
RouteCounty Highway 0
CountySanta Rosa County
StateFlorida
Coordinates30.82894, -87.09132
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length49 ft (14.8 m)
Longest span14 ft (4.2 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2024)
Projected traffic261 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free 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 Penton Road over Mare Branch built?

It was built in 1993, making it 32 years old in 2025.

What condition is Penton Road over Mare Branch 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 September 2024.

How much traffic does Penton Road over Mare Branch carry?

About 150 vehicles per day (2024 count).

How long is Penton Road over Mare Branch?

The structure is 49 ft (14.8 m) long with a longest span of 14 ft (4.2 m) and a deck 24 ft wide.

Who owns Penton Road over Mare Branch?

It is owned by the County Highway Agency.