US Bridges

Penton Road over Mile Br.

PoorPosted for load

Washington Parish, Louisiana · 0.3 Mi. N. of Hwy. 4 · Structure no. 625930519900771

Built
1970
55 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
39 ft
2 main spans
Daily traffic
3,200
2020 count
Owner
County
County Highway Agency

About this bridge

Penton Road over Mile Br. is a wood or timber stringer/multi-beam or girder carrying Penton Road over Mile Br. in Washington Parish, Louisiana. It was built in 1970, so it is 55 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 3,200 vehicles a day, projected to reach 3,520 by 2040. The structure is 39 ft (11.9 m) long and 25 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesPenton Road
CrossesMile Br.
Location0.3 Mi. N. of Hwy. 4
RouteCounty Highway 0
Coordinates30.86316, -90.13033
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating17 US tons
Inventory rating15 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 10
Structure length39 ft (11.9 m)
Longest span20 ft (6.1 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2020)
Projected traffic3,520 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$163,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Penton Road over Mile Br. built?

It was built in 1970, making it 55 years old in 2025.

What condition is Penton Road over Mile Br. in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Penton Road over Mile Br. carry?

About 3,200 vehicles per day (2020 count).

How long is Penton Road over Mile Br.?

The structure is 39 ft (11.9 m) long with a longest span of 20 ft (6.1 m) and a deck 25 ft wide.

Who owns Penton Road over Mile Br.?

It is owned by the County Highway Agency.