US Bridges

TR 48A over Trib N Fork Saline R

Good

Gallatin County, Illinois · 1 MI N of Equality · Structure no. 030306600000000

Built
1977
48 years old
Condition
Good
inspected November 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
25
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 48A over Trib N Fork Saline R is a prestressed concrete box beam or girders - multiple carrying TR 48A over Trib N Fork Saline R in Gallatin County, Illinois. It was built in 1977, so it is 48 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, roughly 28% of them trucks, projected to reach 25 by 2046. The structure is 51 ft (15.5 m) long and 22 ft wide.

CarriesTR 48A
CrossesTrib N Fork Saline R
Location1 MI N of Equality
RouteCounty Highway 0
Coordinates37.75459, -88.33712
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating41.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width22 ft (6.6 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic25 by 2046
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 TR 48A over Trib N Fork Saline R built?

It was built in 1977, making it 48 years old in 2025.

What condition is TR 48A over Trib N Fork Saline R 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 November 2022.

How much traffic does TR 48A over Trib N Fork Saline R carry?

About 25 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is TR 48A over Trib N Fork Saline R?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 22 ft wide.

Who owns TR 48A over Trib N Fork Saline R?

It is owned by the Town or Township Highway Agency.