US Bridges

TR 109 over Brown Branch

Fair

Christian County, Illinois · 2.5MI SE Stonington · Structure no. 011500500000000

Built
1953
72 years old
Condition
Fair
inspected November 2024
Type
Culvert
Steel
Length
28 ft
1 main span
Daily traffic
35
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 109 over Brown Branch is a steel culvert carrying TR 109 over Brown Branch in Christian County, Illinois. It was built in 1953, so it is 72 years old, older than the Illinois average of 45.3 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 35 vehicles a day, roughly 20% of them trucks, projected to reach 35 by 2046. The structure is 28 ft (8.5 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 109
CrossesBrown Branch
Location2.5MI SE Stonington
RouteCounty Highway 0
CountyChristian County
StateIllinois
Coordinates39.61873, -89.12976
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating75.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 15
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2021)
Projected traffic35 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 109 over Brown Branch built?

It was built in 1953, making it 72 years old in 2025.

What condition is TR 109 over Brown 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 November 2024.

How much traffic does TR 109 over Brown Branch carry?

About 35 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is TR 109 over Brown Branch?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 30 ft wide.

Who owns TR 109 over Brown Branch?

It is owned by the Town or Township Highway Agency.