US Bridges

TR-290 over Martinton Ditch #3

PoorPosted for load

Iroquois County, Illinois · 1MI E Martinton · Structure no. 038454000000000

Built
1959
66 years old
Condition
Poor
inspected August 2023
Type
Channel Beam
Concrete
Length
73 ft
3 main spans
Daily traffic
175
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-290 over Martinton Ditch #3 is a concrete channel beam carrying TR-290 over Martinton Ditch #3 in Iroquois County, Illinois. It was built in 1959, so it is 66 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 2 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 175 vehicles a day, roughly 13% of them trucks, projected to reach 530 by 2046. The structure is 73 ft (22.4 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTR-290
CrossesMartinton Ditch #3
Location1MI E Martinton
RouteCounty Highway 0
Coordinates40.91484, -87.71181
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.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.3 US tons
Inventory rating2.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length73 ft (22.4 m)
Longest span23 ft (7.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2022)
Projected traffic530 by 2046
Trucks13%
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-290 over Martinton Ditch #3 built?

It was built in 1959, making it 66 years old in 2025.

What condition is TR-290 over Martinton Ditch #3 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 August 2023.

How much traffic does TR-290 over Martinton Ditch #3 carry?

About 175 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is TR-290 over Martinton Ditch #3?

The structure is 73 ft (22.4 m) long with a longest span of 23 ft (7.1 m) and a deck 26 ft wide.

Who owns TR-290 over Martinton Ditch #3?

It is owned by the Town or Township Highway Agency.