US Bridges

Tremont ST over Ditch

Fair

Montgomery County, Illinois · Hillsboro · Structure no. 068600600000000

Built
1914
111 years old
Condition
Fair
inspected February 2023
Type
Other
Concrete
Length
43 ft
1 main span
Daily traffic
1,150
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Tremont ST over Ditch is a concrete other carrying Tremont ST over Ditch in Montgomery County, Illinois. It was built in 1914, so it is 111 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 1,150 vehicles a day, roughly 3% of them trucks, projected to reach 1,162 by 2046. The structure is 43 ft (13.1 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesTremont ST
CrossesDitch
LocationHillsboro
RouteCity Street 0
CountyMontgomery County
StateIllinois
Coordinates39.15433, -89.48711
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeOther
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span41 ft (12.6 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2020)
Projected traffic1,162 by 2046
Trucks3%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Tremont ST over Ditch built?

It was built in 1914, making it 111 years old in 2025.

What condition is Tremont ST over Ditch 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 February 2023.

How much traffic does Tremont ST over Ditch carry?

About 1,150 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Tremont ST over Ditch?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.6 m) and a deck 29 ft wide.

Who owns Tremont ST over Ditch?

It is owned by the City or Municipal Highway Agency.