US Bridges

TR 345 B over S. Edwards River

Fair

Henry County, Illinois · 4.5 MI SE Andover · Structure no. 037324600000000

Built
1980
45 years old
Condition
Fair
inspected August 2023
Type
Channel Beam
Concrete
Length
111 ft
3 main spans
Daily traffic
75
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 345 B over S. Edwards River is a concrete channel beam carrying TR 345 B over S. Edwards River in Henry County, Illinois. It was built in 1980, so it is 45 years old, younger 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 75 vehicles a day, projected to reach 81 by 2046. The structure is 111 ft (33.8 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesTR 345 B
CrossesS. Edwards River
Location4.5 MI SE Andover
RouteCounty Highway 0
CountyHenry County
StateIllinois
Coordinates41.23254, -90.23314
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span37 ft (11.3 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2020)
Projected traffic81 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 345 B over S. Edwards River built?

It was built in 1980, making it 45 years old in 2025.

What condition is TR 345 B over S. Edwards River 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 August 2023.

How much traffic does TR 345 B over S. Edwards River carry?

About 75 vehicles per day (2020 count).

How long is TR 345 B over S. Edwards River?

The structure is 111 ft (33.8 m) long with a longest span of 37 ft (11.3 m) and a deck 27 ft wide.

Who owns TR 345 B over S. Edwards River?

It is owned by the Town or Township Highway Agency.