US Bridges

Conner RD - TR 344 over Big Creek

Fair

Fulton County, Illinois · NE-3-T5NR3E · Structure no. 029413200000000

Built
1978
47 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
88 ft
3 main spans
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Conner RD - TR 344 over Big Creek is a concrete tee beam carrying Conner RD - TR 344 over Big Creek in Fulton County, Illinois. It was built in 1978, so it is 47 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 6 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 50 vehicles a day, projected to reach 51 by 2046. The structure is 88 ft (26.8 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesConner RD - TR 344
CrossesBig Creek
LocationNE-3-T5NR3E
RouteCounty Highway 0
CountyFulton County
StateIllinois
Coordinates40.44889, -90.15539
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating58.5 US tons
Inventory rating35.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span34 ft (10.4 m)
Deck width23 ft (6.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks0%
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 Conner RD - TR 344 over Big Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Conner RD - TR 344 over Big 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 November 2023.

How much traffic does Conner RD - TR 344 over Big Creek carry?

About 50 vehicles per day (2020 count).

How long is Conner RD - TR 344 over Big Creek?

The structure is 88 ft (26.8 m) long with a longest span of 34 ft (10.4 m) and a deck 23 ft wide.

Who owns Conner RD - TR 344 over Big Creek?

It is owned by the Town or Township Highway Agency.