US Bridges

TR 70A over Cedar CR

PoorClosed to traffic

Warren County, Illinois · NE-12-T11NR3W · Structure no. 094530200000000

Built
1900
125 years old
Condition
Poor
inspected January 2021
Type
Truss - Thru
Steel
Length
96 ft
1 main span
Daily traffic
20
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 70A over Cedar CR is a steel truss - thru carrying TR 70A over Cedar CR in Warren 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: closed to all traffic.

It carries about 20 vehicles a day, roughly 15% of them trucks, projected to reach 20 by 2046. The structure is 96 ft (29.3 m) long and 15 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 70A
CrossesCedar CR
LocationNE-12-T11NR3W
RouteCounty Highway 0
CountyWarren County
StateIllinois
Coordinates40.96627, -90.66918
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2021
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating30.3 US tons
Inventory rating15.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length96 ft (29.3 m)
Longest span92 ft (28 m)
Deck width15 ft (4.5 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2016)
Projected traffic20 by 2046
Trucks15%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 70A over Cedar CR built?

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

What condition is TR 70A over Cedar CR 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 January 2021.

How much traffic does TR 70A over Cedar CR carry?

About 20 vehicles per day (2016 count), of which roughly 15% are trucks.

How long is TR 70A over Cedar CR?

The structure is 96 ft (29.3 m) long with a longest span of 92 ft (28 m) and a deck 15 ft wide.

Who owns TR 70A over Cedar CR?

It is owned by the Town or Township Highway Agency.