US Bridges

330 TH / E63 over Greenbriar Creek

Fair

Greene County, Iowa · 082303201 · Structure no. 000000000161821

Built
1977
48 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
190
2022 count
Owner
County
County Highway Agency

About this bridge

330 TH / E63 over Greenbriar Creek is a concrete continuous slab carrying 330 TH / E63 over Greenbriar Creek in Greene County, Iowa. It was built in 1977, so it is 48 years old, older than the Iowa average of 45.5 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 190 vehicles a day, roughly 15% of them trucks, projected to reach 190 by 2043. The structure is 103 ft (31.4 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries330 TH / E63
CrossesGreenbriar Creek
Location082303201
RouteCounty Highway 0
CountyGreene County
StateIowa
Coordinates41.87755, -94.37407
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating34.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length103 ft (31.4 m)
Longest span39 ft (11.9 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2022)
Projected traffic190 by 2043
Trucks15%
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

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 330 TH / E63 over Greenbriar Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is 330 TH / E63 over Greenbriar 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 July 2024.

How much traffic does 330 TH / E63 over Greenbriar Creek carry?

About 190 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 330 TH / E63 over Greenbriar Creek?

The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.

Who owns 330 TH / E63 over Greenbriar Creek?

It is owned by the County Highway Agency.