US Bridges

Local 305th St. over Lime CR

PoorClosed to traffic

Buchanan County, Iowa · 087101303 · Structure no. 000000000081560

Built
1910
115 years old
Condition
Poor
inspected December 2015
Type
Truss - Thru
Steel
Length
81 ft
1 main span
Daily traffic
16
2022 count
Owner
County
County Highway Agency

About this bridge

Local 305th St. over Lime CR is a steel truss - thru carrying Local 305th St. over Lime CR in Buchanan County, Iowa. It was built in 1910, so it is 115 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 16 vehicles a day, projected to reach 16 by 2043. The structure is 81 ft (24.7 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal 305th St.
CrossesLime CR
Location087101303
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.35075, -91.96666
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2015
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span80 ft (24.4 m)
Deck width16 ft (4.8 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deck9 ft (2.7 m)

Traffic and service

Average daily traffic16 (2022)
Projected traffic16 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local 305th St. over Lime CR built?

It was built in 1910, making it 115 years old in 2025.

What condition is Local 305th St. over Lime CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2015.

How much traffic does Local 305th St. over Lime CR carry?

About 16 vehicles per day (2022 count).

How long is Local 305th St. over Lime CR?

The structure is 81 ft (24.7 m) long with a longest span of 80 ft (24.4 m) and a deck 16 ft wide.

Who owns Local 305th St. over Lime CR?

It is owned by the County Highway Agency.