US Bridges

TR 369 over Sangamon River

Fair

McLean County, Illinois · 2.0 MI SW Arrowsmith · Structure no. 057320300000000

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
57 ft
3 main spans
Daily traffic
25
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 369 over Sangamon River is a concrete continuous slab carrying TR 369 over Sangamon River in McLean County, Illinois. It was built in 1968, so it is 57 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 25 vehicles a day, roughly 8% of them trucks, projected to reach 25 by 2046. The structure is 57 ft (17.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 369
CrossesSangamon River
Location2.0 MI SW Arrowsmith
RouteCounty Highway 0
CountyMcLean County
StateIllinois
Coordinates40.43139, -88.66967
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length57 ft (17.4 m)
Longest span21 ft (6.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic25 by 2046
Trucks8%
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 369 over Sangamon River built?

It was built in 1968, making it 57 years old in 2025.

What condition is TR 369 over Sangamon River 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 October 2024.

How much traffic does TR 369 over Sangamon River carry?

About 25 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is TR 369 over Sangamon River?

The structure is 57 ft (17.4 m) long with a longest span of 21 ft (6.4 m) and a deck 26 ft wide.

Who owns TR 369 over Sangamon River?

It is owned by the Town or Township Highway Agency.