US Bridges

TR 229 a over Big George Branch

PoorPosted for load

Christian County, Illinois · 2MI SW Assumption · Structure no. 011318000000000

Built
1900
125 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
2 main spans
Daily traffic
10
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 229 a over Big George Branch is a steel stringer/multi-beam or girder carrying TR 229 a over Big George Branch in Christian County, Illinois. It was built in 1900, so it is 125 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 10 by 2046. The structure is 32 ft (9.8 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 229 a
CrossesBig George Branch
Location2MI SW Assumption
RouteCounty Highway 0
CountyChristian County
StateIllinois
Coordinates39.49408, -89.08303
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span15 ft (4.6 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2021)
Projected traffic10 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$41,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 229 a over Big George Branch built?

It was built in 1900, making it 125 years old in 2025.

What condition is TR 229 a over Big George Branch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does TR 229 a over Big George Branch carry?

About 10 vehicles per day (2021 count).

How long is TR 229 a over Big George Branch?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m) and a deck 18 ft wide.

Who owns TR 229 a over Big George Branch?

It is owned by the Town or Township Highway Agency.