US Bridges

TR 31 over Stream

Good

Gallatin County, Illinois · 0.8 MI W FAS 888 · Structure no. 030310800000000

Built
2000
25 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
10
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 31 over Stream is a prestressed concrete box beam or girders - multiple carrying TR 31 over Stream in Gallatin County, Illinois. It was built in 2000, so it is 25 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 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 10 vehicles a day, roughly 50% of them trucks, projected to reach 25 by 2046. The structure is 52 ft (15.7 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTR 31
CrossesStream
Location0.8 MI W FAS 888
RouteCounty Highway 0
Coordinates37.87874, -88.18714
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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span49 ft (14.9 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic25 by 2046
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 TR 31 over Stream built?

It was built in 2000, making it 25 years old in 2025.

What condition is TR 31 over Stream 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 July 2023.

How much traffic does TR 31 over Stream carry?

About 10 vehicles per day (2023 count), of which roughly 50% are trucks.

How long is TR 31 over Stream?

The structure is 52 ft (15.7 m) long with a longest span of 49 ft (14.9 m) and a deck 24 ft wide.

Who owns TR 31 over Stream?

It is owned by the Town or Township Highway Agency.