US Bridges

TR 9 Mona over Kelly Creek

Fair

Ford County, Illinois · 1450E 3500N · Structure no. 027320100000000

Built
1971
54 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
25
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 9 Mona over Kelly Creek is a prestressed concrete box beam or girders - multiple carrying TR 9 Mona over Kelly Creek in Ford County, Illinois. It was built in 1971, so it is 54 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, projected to reach 25 by 2046. The structure is 60 ft (18.3 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesTR 9 Mona
CrossesKelly Creek
Location1450E 3500N
RouteCounty Highway 0
CountyFord County
StateIllinois
Coordinates40.90842, -88.19686
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating26.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic25 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 9 Mona over Kelly Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is TR 9 Mona over Kelly Creek 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 April 2023.

How much traffic does TR 9 Mona over Kelly Creek carry?

About 25 vehicles per day (2023 count).

How long is TR 9 Mona over Kelly Creek?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 24 ft wide.

Who owns TR 9 Mona over Kelly Creek?

It is owned by the Town or Township Highway Agency.