US Bridges

Long RD over Five Mile Branch

Good

Lee County, Illinois · 0.1 MI N of Porter R · Structure no. 052429300000000

Built
1980
45 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
10
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Long RD over Five Mile Branch is a prestressed concrete box beam or girders - multiple carrying Long RD over Five Mile Branch in Lee County, Illinois. It was built in 1980, so it is 45 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 10 by 2046. The structure is 57 ft (17.4 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLong RD
CrossesFive Mile Branch
Location0.1 MI N of Porter R
RouteCounty Highway 0
Coordinates41.73693, -89.57383
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span54 ft (16.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2017)
Projected traffic10 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Long RD over Five Mile Branch built?

It was built in 1980, making it 45 years old in 2025.

What condition is Long RD over Five Mile Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does Long RD over Five Mile Branch carry?

About 10 vehicles per day (2017 count).

How long is Long RD over Five Mile Branch?

The structure is 57 ft (17.4 m) long with a longest span of 54 ft (16.5 m) and a deck 24 ft wide.

Who owns Long RD over Five Mile Branch?

It is owned by the Town or Township Highway Agency.