US Bridges

I0010 over Middle Pearl R.

Fair

St. Tammany Parish, Louisiana · I0010 · Structure no. 625204501812102

Built
1970
55 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
770 ft
11 main spans
Daily traffic
1,600
2021 count
Owner
State
State Highway Agency

About this bridge

I0010 over Middle Pearl R. is a prestressed concrete stringer/multi-beam or girder carrying I0010 over Middle Pearl R. in St. Tammany 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 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.

It carries about 1,600 vehicles a day, roughly 25% of them trucks, projected to reach 1,760 by 2041. The structure is 770 ft (234.7 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI0010
CrossesMiddle Pearl R.
LocationI0010
RouteInterstate 10
CountySt. Tammany Parish
StateLouisiana
Coordinates30.29864, -89.6632
Functional classRural Principal Arterial - Interstate

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length770 ft (234.7 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2021)
Projected traffic1,760 by 2041
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$3.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I0010 over Middle Pearl R. built?

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

What condition is I0010 over Middle Pearl R. 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 2023.

How much traffic does I0010 over Middle Pearl R. carry?

About 1,600 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is I0010 over Middle Pearl R.?

The structure is 770 ft (234.7 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns I0010 over Middle Pearl R.?

It is owned by the State Highway Agency.