US Bridges

TR 341 over Parker Run

Good

Henry County, Illinois · 2.6 MI NW Alpha · Structure no. 037338300000000

Built
2022
3 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
50
2010 count
Owner
County
County Highway Agency

About this bridge

TR 341 over Parker Run is a prestressed concrete box beam or girders - multiple carrying TR 341 over Parker Run in Henry County, Illinois. It was built in 2022, so it is 3 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 60% of them trucks, projected to reach 100 by 2042. The structure is 71 ft (21.6 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 341
CrossesParker Run
Location2.6 MI NW Alpha
RouteCounty Highway 0
Coordinates41.22456, -90.4112
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating56.8 US tons
Inventory rating44.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length71 ft (21.6 m)
Longest span68 ft (20.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2010)
Projected traffic100 by 2042
Trucks60%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 341 over Parker Run built?

It was built in 2022, making it 3 years old in 2025.

What condition is TR 341 over Parker Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does TR 341 over Parker Run carry?

About 50 vehicles per day (2010 count), of which roughly 60% are trucks.

How long is TR 341 over Parker Run?

The structure is 71 ft (21.6 m) long with a longest span of 68 ft (20.7 m) and a deck 24 ft wide.

Who owns TR 341 over Parker Run?

It is owned by the County Highway Agency.