US Bridges

Portland Arch RD over Mallory Branch

Fair

Fountain County, Indiana · 00.40 N of Pearl ST · Structure no. 2300098

Built
2004
21 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
1,300
2024 count
Owner
County
County Highway Agency

About this bridge

Portland Arch RD over Mallory Branch is a prestressed concrete box beam or girders - multiple carrying Portland Arch RD over Mallory Branch in Fountain County, Indiana. It was built in 2004, so it is 21 years old, younger than the Indiana average of 46.6 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 1,300 vehicles a day, roughly 6% of them trucks, projected to reach 1,751 by 2044. The structure is 66 ft (20.1 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesPortland Arch RD
CrossesMallory Branch
Location00.40 N of Pearl ST
RouteCounty Highway 0
CountyFountain County
StateIndiana
Coordinates40.15004, -87.40018
Functional classRural Major Collector

Condition and inspection

Fair

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

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating35.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span61 ft (18.5 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2024)
Projected traffic1,751 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Portland Arch RD over Mallory Branch built?

It was built in 2004, making it 21 years old in 2025.

What condition is Portland Arch RD over Mallory 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 June 2024.

How much traffic does Portland Arch RD over Mallory Branch carry?

About 1,300 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Portland Arch RD over Mallory Branch?

The structure is 66 ft (20.1 m) long with a longest span of 61 ft (18.5 m) and a deck 28 ft wide.

Who owns Portland Arch RD over Mallory Branch?

It is owned by the County Highway Agency.